The title of incident without hostname and check name

[pablolibo]

Hi all,

I'm having a strange behavior about this handler to pagerduty, when sending the event is not included hostname and the check name of the alert like old version of handler pagerduty written in ruby.

for example, the ruby version the 'Related to Incident' in pagerduty console is like:

services-01289.ops/elasticsearch-cluster-status : ESClusterStatus WARNING: Cluster is yellow
hostname/check_name: output

that is fine, but the pagerduty in GO I have something like this:

CheckHttp CRITICAL: Request error: end of file reached
this is the output command without the hostname and check name, I would like to add these fields for a better understanding of the alert.

How I can fix it?

Thanks!

[pablolibo]

I am adding new PR for this issue #6

[nixwiz]

This was left open even though changes were merged. Subsequently, the summary field is now configurable as a template (in #28 )