Remove trailing whitespaces in the markdown files of the documentation

doc/01-about.md

@@ -67,4 +67,3 @@ Read more about development builds in the [development chapter](21-development.m
 Icinga 2 and the Icinga 2 documentation are licensed under the terms of the GNU
 General Public License Version 2. You will find a copy of this license in the
 LICENSE file included in the source package.
-

doc/10-icinga-template-library.md

@@ -3512,7 +3512,7 @@ thola_identify_discover_timeouts   | **Optional.** The number of discover timeou
 
 > **Note**:
 >
-> One of the variables `thola_identify_model`, `thola_identify_os_version`, 
+> One of the variables `thola_identify_model`, `thola_identify_os_version`,
 > `thola_identify_vendor` or `thola_identify_serial_number` must be set
 
 ##### thola-memory-usage <a id="plugin-contrib-command-thola-memory-usage"></a>

doc/11-cli-commands.md

@@ -22,7 +22,7 @@ Supported commands:
   * api setup (setup for API)
   * ca list (lists all certificate signing requests)
   * ca restore (restores a removed certificate request)
-  * ca remove (removes an outstanding certificate request)  
+  * ca remove (removes an outstanding certificate request)
   * ca sign (signs an outstanding certificate request)
   * console (Icinga debug console)
   * daemon (starts Icinga 2)

doc/12-icinga2-api.md

@@ -115,7 +115,7 @@ You can also use [jq](https://stedolan.github.io/jq/) or `python -m json.tool`
 in combination with curl on the CLI.
 
 ```bash
-curl ... | jq 
+curl ... | jq
 curl ... | python -m json.tool
 ```
 
@@ -1658,14 +1658,14 @@ Send a `POST` request to the URL endpoint `/v1/actions/execute-command`.
   --------------|------------|--------------
   ttl           | Number     | **Required.** The time to live of the execution expressed in seconds.
   command_type  | String     | **Optional.** The command type: `CheckCommand` or `EventCommand` or `NotificationCommand`. Default: `EventCommand`
-  command       | String     | **Optional.** The command to execute. Its type must the same as `command_type`. It can be a macro string. Default: depending on the `command_type` it's either `$check_command$`, `$event_command$` or `$notification_command$`   
+  command       | String     | **Optional.** The command to execute. Its type must the same as `command_type`. It can be a macro string. Default: depending on the `command_type` it's either `$check_command$`, `$event_command$` or `$notification_command$`
   endpoint      | String     | **Optional.** The endpoint to execute the command on. It can be a macro string. Default: `$command_endpoint$`.
   macros        | Dictionary | **Optional.** Macro overrides. Default: `{}`
-  user          | String     | **Optional.** The user used for the notification command. 
+  user          | String     | **Optional.** The user used for the notification command.
   notification  | String     | **Optional.** The notification used for the notification command.
-  
+
 Example:
-  
+
 ```bash
 curl -k -s -S -i -u root:icinga -H 'Accept: application/json' \
  -X POST 'https://localhost:5665/v1/actions/execute-command' \
@@ -2638,7 +2638,7 @@ Name												| Language	| Description
 [BitBar for OSX](https://getbitbar.com/plugins/Dev/Icinga2/icinga2.24m.py)			| Python	| macOS tray app for highlighting the host/service status
 [Icinga 2 Multistatus](https://chrome.google.com/webstore/detail/icinga-multi-status/khabbhcojgkibdeipanmiphceeoiijal/related)	| - 	| Chrome Extension
 [Naglite4](https://github.com/wftech/icinga2-naglite4)						| Python	| Naglite3 rewrite using the Icinga 2 REST API.
-[icinga-telegram-bot](https://github.com/joni1993/icinga-telegram-bot)				| Python	| Telegram Bot using the Icinga 2 REST API 
+[icinga-telegram-bot](https://github.com/joni1993/icinga-telegram-bot)				| Python	| Telegram Bot using the Icinga 2 REST API
 
 ### Manage Objects <a id="icinga2-api-clients-management"></a>
 

doc/14-features.md

@@ -52,7 +52,7 @@ Icinga DB is a set of components for publishing, synchronizing and
 visualizing monitoring data in the Icinga ecosystem, consisting of:
 
 * Icinga 2 with its `icingadb` feature enabled,
-  responsible for publishing monitoring data to a Redis server, i.e. configuration and its runtime updates,  
+  responsible for publishing monitoring data to a Redis server, i.e. configuration and its runtime updates,
   check results, state changes, downtimes, acknowledgements, notifications, and other events such as flapping
 * The [Icinga DB daemon](https://icinga.com/docs/icinga-db),
   which synchronizes the data between the Redis server and a database

doc/18-library-reference.md

@@ -1648,9 +1648,9 @@ Example:
 function set_x(val) {
   this.x = val
 }
-	
+
 dict = {}
-	
+
 set_x.call(dict, 7) /* Invokes set_x using `dict` as `this` */
 ```
 
@@ -1671,7 +1671,7 @@ Example:
 function set_x(val) {
   this.x = val
 }
-	
+
 var dict = {}
 
 var args = [ 7 ]

doc/19-technical-concepts.md

@@ -1887,7 +1887,7 @@ source         | String        | The execution UUID
 
 Special handling, calls `ClusterEvents::EnqueueCheck()` for command endpoint checks.
 This function enqueues check tasks into a queue which is controlled in `RemoteCheckThreadProc()`.
-If the `endpoint` parameter is specified and is not equal to the local endpoint then the message is forwarded to the correct endpoint zone. 
+If the `endpoint` parameter is specified and is not equal to the local endpoint then the message is forwarded to the correct endpoint zone.
 
 ##### Permissions
 
@@ -1932,7 +1932,7 @@ executions     | Dictionary    | Executions to be updated
 ##### Functions
 
 **Event Sender:** `ClusterEvents::ExecutedCommandAPIHandler`, `ClusterEvents::UpdateExecutionsAPIHandler`, `ApiActions::ExecuteCommand`
-**Event Receiver:** `ClusterEvents::UpdateExecutionsAPIHandler` 
+**Event Receiver:** `ClusterEvents::UpdateExecutionsAPIHandler`
 
 ##### Permissions
 
@@ -1962,15 +1962,15 @@ Key            | Type          | Description
 host           | String        | Host name.
 service        | String        | Service name.
 execution      | String        | The execution ID executed.
-exitStatus     | Number        | The command exit status. 
+exitStatus     | Number        | The command exit status.
 output         | String        | The command output.
 start          | Number        | The unix timestamp at the start of the command execution
 end            | Number        | The unix timestamp at the end of the command execution
 
 ##### Functions
 
 **Event Sender:** `ClusterEvents::ExecuteCheckFromQueue`, `ClusterEvents::ExecuteCommandAPIHandler`
-**Event Receiver:** `ClusterEvents::ExecutedCommandAPIHandler` 
+**Event Receiver:** `ClusterEvents::ExecutedCommandAPIHandler`
 
 ##### Permissions
 

doc/22-selinux.md

@@ -116,19 +116,19 @@ The policy provides a role `icinga2adm_r` for confining an user which enables an
 
 SELinux is based on the least level of access required for a service to run. Using booleans you can grant more access in a defined way. The Icinga 2 policy package provides the following booleans.
 
-**icinga2_can_connect_all** 
+**icinga2_can_connect_all**
 
 Having this boolean enabled allows icinga2 to connect to all ports. This can be necessary if you use features which connect to unconfined services, for example the [influxdb writer](14-features.md#influxdb-writer).
 
-**icinga2_run_sudo** 
+**icinga2_run_sudo**
 
 To allow Icinga 2 executing plugins via sudo you can toogle this boolean. It is disabled by default, resulting in error messages like `execvpe(sudo) failed: Permission denied`.
 
-**httpd_can_write_icinga2_command** 
+**httpd_can_write_icinga2_command**
 
 To allow httpd to write to the command pipe of icinga2 this boolean has to be enabled. This is enabled by default, if not needed you can disable it for more security.
 
-**httpd_can_connect_icinga2_api** 
+**httpd_can_connect_icinga2_api**
 
 Enabling this boolean allows httpd to connect to the API of icinga2 (Ports labeled `icinga2_port_t`). This is enabled by default, if not needed you can disable it for more security.
 

doc/23-migrating-from-icinga-1x.md

@@ -804,7 +804,7 @@ define service {
 }
 ```
 
-Icinga 2 supports objects and (global) variables, but does not make a difference 
+Icinga 2 supports objects and (global) variables, but does not make a difference
 between the main configuration file or any other included file.
 
 icinga2.conf:

doc/24-appendix.md

@@ -692,4 +692,3 @@ the [servicegroups](24-appendix.md#schema-livestatus-servicegroups-table-attribu
 
 All [services](24-appendix.md#schema-livestatus-services-table-attributes) table attributes grouped with
 the [hostgroups](24-appendix.md#schema-livestatus-hostgroups-table-attributes) table prefixed with `hostgroup_`.
-