Improve the sources regexp to be more correct.

R=dpranke@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7030023

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@87185 0039d316-1c4b-4281-b951-d872f2087c98

presubmit_canned_checks.py

@@ -886,8 +886,8 @@ def PanProjectChecks(input_api, output_api,
   """
   excluded_paths = excluded_paths or  tuple()
   text_files = text_files or (
-      r'.*\.txt',
-      r'.*\.json',
+      r'.+\.txt$',
+      r'.+\.json$',
   )
   project_name = project_name or 'Chromium'
   license_header = license_header or (
@@ -909,9 +909,8 @@ def PanProjectChecks(input_api, output_api,
   black_list = input_api.DEFAULT_BLACK_LIST + excluded_paths
   white_list = input_api.DEFAULT_WHITE_LIST + text_files
   sources = lambda x: input_api.FilterSourceFile(x, black_list=black_list)
-  text_files = lambda x: input_api.FilterSourceFile(x, black_list=black_list,
-                                                    white_list=white_list)
-
+  text_files = lambda x: input_api.FilterSourceFile(
+      x, black_list=black_list, white_list=white_list)
 
   snapshot_memory = []
   def snapshot(msg):

presubmit_support.py

@@ -187,15 +187,15 @@ class InputApi(object):
   # perspective. Don't modify this list from a presubmit script!
   DEFAULT_WHITE_LIST = (
       # C++ and friends
-      r".*\.c$", r".*\.cc$", r".*\.cpp$", r".*\.h$", r".*\.m$", r".*\.mm$",
-      r".*\.inl$", r".*\.asm$", r".*\.hxx$", r".*\.hpp$", r".*\.s$", r".*\.S$",
+      r".+\.c$", r".+\.cc$", r".+\.cpp$", r".+\.h$", r".+\.m$", r".+\.mm$",
+      r".+\.inl$", r".+\.asm$", r".+\.hxx$", r".+\.hpp$", r".+\.s$", r".+\.S$",
       # Scripts
-      r".*\.js$", r".*\.py$", r".*\.sh$", r".*\.rb$", r".*\.pl$", r".*\.pm$",
+      r".+\.js$", r".+\.py$", r".+\.sh$", r".+\.rb$", r".+\.pl$", r".+\.pm$",
       # No extension at all, note that ALL CAPS files are black listed in
       # DEFAULT_BLACK_LIST below.
       r"(^|.*?[\\\/])[^.]+$",
       # Other
-      r".*\.java$", r".*\.mk$", r".*\.am$",
+      r".+\.java$", r".+\.mk$", r".+\.am$",
   )
 
   # Path regexp that should be excluded from being considered containing source