Add \n to the regex in clang-tidy-diff.py in order to fix http://llvm.org/PR24637,

git usecase for multiple files diff.

llvm-svn: 246575

clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py

@@ -67,7 +67,7 @@ def main():
   filename = None
   lines_by_file = {}
   for line in sys.stdin:
-    match = re.search('^\+\+\+\ \"?(.*?/){%s}([^ \t\"]*)' % args.p, line)
+    match = re.search('^\+\+\+\ \"?(.*?/){%s}([^ \t\n\"]*)' % args.p, line)
     if match:
       filename = match.group(2)
     if filename == None: