Small style fixes

Add function keyword to function declaration
Add comment describing URLs this feature handles

Author: 4U6U57

git-open

@@ -61,7 +61,7 @@ ssh_config=${ssh_config:-~/.ssh/config}
 # Resolves an ssh alias defined in ssh_config to it's corresponding hostname
 # echos out result, should be used within subshell $( ssh_resolve $host )
 # echos out nothing if alias could not be resolved
-ssh_resolve() {
+function ssh_resolve() {
   domain="$1"
   ssh_found=true
   # Filter to only ssh_config lines that start with "Host" or "HostName"
@@ -101,6 +101,7 @@ ssh_resolve() {
 # http[s]://host.xz[:port]/path/to/repo.git/
 # ftp[s]://host.xz[:port]/path/to/repo.git/
 # [user@]host.xz:path/to/repo.git/ - scp-like but is an alternative to ssh.
+# [user@]hostalias:path/to/repo.git/ - handles host aliases defined in ssh_config(5)
 
 # Determine whether this is a url (https, ssh, git+ssh...) or an scp-style path
 if [[ "$giturl" =~ ^[a-z\+]+://.* ]]; then