Allow lines up to 72 characters in commit messages

72 is the limit, not 71.  See:

    https://stackoverflow.com/a/17792445/912144

Bug: angleproject:4683
Change-Id: Icb53f2d532b9b55e31e3f1593bd2302a3011095e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2230785
Reviewed-by: Manh Nguyen <[email protected]>
Commit-Queue: Shahbaz Youssefi <[email protected]>

Author: ShabbyX

PRESUBMIT.py

@@ -44,7 +44,7 @@ def _PopBlankLines(lines, reverse=False):
     whitelist_strings = ['Revert "', 'Roll ']
     summary_linelength_warning_lower_limit = 65
     summary_linelength_warning_upper_limit = 70
-    description_linelength_limit = 71
+    description_linelength_limit = 72
 
     if input_api.change.issue:
         git_output = input_api.gerrit.GetChangeDescription(input_api.change.issue)