--- a/checker.py	Tue Jun 14 13:51:47 2016 +0800
+++ b/checker.py	Wed Jun 15 01:44:31 2016 +0800
@@ -96,10 +96,7 @@
             if 'cmd' not in linter or 'files' not in linter:
                 continue
 
-            args = []
-            for fpat in linter['files']:
-                args.extend(['-I', fpat])
-            cmd = ['hg', 'files'] + args
+            cmd = ['hg', 'files', 'set:' + ' or '.join(linter['files'])]
             files = run(cmd, silent=True, get_output=True, ignore_1=True)
             if files is False:
                 ok = False