BaseTools/PatchCheck.py: Update for max length of subject and message…

… line

This patch update PatchCheck.py:
1. The subject line of the commit message should be < 72 characters.
2. The other lines of the commit message should be < 76 characters.

Fixes: https://bugzilla.tianocore.org/show_bug.cgi?id=113
Cc: Liming Gao <liming.gao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

BaseTools/Scripts/PatchCheck.py

@@ -1,7 +1,7 @@
 ## @file
 #  Check a patch for various format issues
 #
-#  Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
 #
 #  This program and the accompanying materials are licensed and made
 #  available under the terms and conditions of the BSD License which
@@ -16,7 +16,7 @@
 from __future__ import print_function
 
 VersionNumber = '0.1'
-__copyright__ = "Copyright (c) 2015, Intel Corporation  All rights reserved."
+__copyright__ = "Copyright (c) 2015 - 2016, Intel Corporation  All rights reserved."
 
 import email
 import argparse
@@ -197,7 +197,7 @@ def check_overall_format(self):
             self.error('Empty commit message!')
             return
 
-        if count >= 1 and len(lines[0]) > 76:
+        if count >= 1 and len(lines[0]) >= 72:
             self.error('First line of commit message (subject line) ' +
                        'is too long.')
 
@@ -210,7 +210,7 @@ def check_overall_format(self):
                        'empty.')
 
         for i in range(2, count):
-            if (len(lines[i]) > 76 and
+            if (len(lines[i]) >= 76 and
                 len(lines[i].split()) > 1 and
                 not lines[i].startswith('git-svn-id:')):
                 self.error('Line %d of commit message is too long.' % (i + 1))