fix short_id() for inverted patches too.
treedd788efcec04077c4c1d7f9bc5a58c4484e39548
-rw-r--r-- 60 .gitignore
-rw-r--r-- 284 Makefile
-rw-r--r-- 22096 darcs2git.py
drwxr-xr-x - tests