Add usage message when no arguments.

1 files changed, 4 insertions, 0 deletions

diff --git a/Tools/scripts/tabpolice.py b/Tools/scripts/tabpolice.py
index 22005e119e..ae97581fd8 100755
--- a/Tools/scripts/tabpolice.py
+++ b/Tools/scripts/tabpolice.py
@@ -16,6 +16,7 @@ def main():
 		opts, args = getopt.getopt(sys.argv[1:], "qv")
 	except getopt.error, msg:
 		print msg
+		return
 	for o, a in opts:
 		if o == '-v':
 			verbose = verbose + 1
@@ -23,6 +24,9 @@ def main():
 		if o == '-q':
 			quiet = 1
 			verbose = 0
+	if not args:
+		print "Usage:", sys.argv[0], "file_or_directory ..."
+		return
 	for arg in args:
 		check(arg)