create checkpoints. this helps with large repos.
tree37b1ff030f4522ab302d6be0f21b83ecc3a2beda
-rw-r--r-- 1086 GNUmakefile.patch
-rw-r--r-- 2372 README.git-darcs-import
-rw-r--r-- 1606 TODO.git-darcs-import
drwxr-xr-x - src