BUG/MEDIUM: Consistently use 'check' in process_chk

I am not entirely sure that this is a bug, but it seems
to me that it may cause a problem if there agent-check is
configured and there is some kind of error making a connection for it.

Signed-off-by: Simon Horman <horms@verge.net.au>
(cherry picked from commit ccaabcdfca23851af6fd83f4f3265284d283e2ab)
1 file changed