talk/PRESUBMIT: Accept copyright years going back to 2004.

R=henrike@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1956004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4485 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/PRESUBMIT.py b/talk/PRESUBMIT.py
index fc29f95..4118e10 100644
--- a/talk/PRESUBMIT.py
+++ b/talk/PRESUBMIT.py
@@ -56,9 +56,9 @@
 
 def _LicenseHeader(input_api):
   """Returns the license header regexp."""
-  # Accept any year number from 2008 to the current year
+  # Accept any year number from start of project to the current year
   current_year = int(input_api.time.strftime('%Y'))
-  allowed_years = (str(s) for s in reversed(xrange(2008, current_year + 1)))
+  allowed_years = (str(s) for s in reversed(xrange(2004, current_year + 1)))
   years_re = '(' + '|'.join(allowed_years) + ')'
   license_header = (
       r'.*? libjingle\n'