contrib: Add 2 further ignored commits

I goof'd and double-reverted a change.  Add those to the ignore
list, leaving the final reversion as-is.

	* gcc-changelog/git_update_version.py (ignored_commits): Add 2
	further commits.

contrib/gcc-changelog/git_update_version.py

@@ -44,6 +44,8 @@ ignored_commits = {
         '109f1b28fc94c93096506e3df0c25e331cef19d0',
         '39f81924d88e3cc197fc3df74204c9b5e01e12f7',
         '8e6a25b01becf449d54154b7e83de5f4955cba37',
+        '72677e1119dc40aa680755d009e079ad49446c46',
+        '10d76b7f1e5b63ad6d2b92940c39007913ced037',
         '13cf22eb557eb5e3d796822247d8d4957bdb25da'}
 
 FORMAT = '%(asctime)s:%(levelname)s:%(name)s:%(message)s'