contrib/ChangeLog:

	* gcc-changelog/git_commit.py: Allow deletion of ChangeLog
	files.
	* gcc-changelog/setup.cfg: Set line limit to 120 characters.
	* gcc-changelog/test_email.py: Add test.
	* gcc-changelog/test_patches.txt: Likewise.
	* gcc-changelog/git_email.py: Fix parsing of deleted files.