Merge pull request #59 from default50/process_matcher_fix

Improve process name check

Author: yubangxi

vendor/gems/process_manager-0.0.13/lib/process_manager/master.rb

@@ -163,7 +163,7 @@ def stop
       end
 
       def process_matcher(pid)
-        File.read("/proc/#{pid}/cmdline").include?("codedeploy")
+        File.read("/proc/#{pid}/cmdline").include?("codedeploy-agent: master")
       end
 
       def handle_pid_file