Update docstring
Update docstring

Ignore-this: 43c2d39126ec495292446e2413f8d4a1

darcs-hash:20090624042928-e018d-ca693fc0c3f5f46218ed6a9001954beb047d391a.gz

nathankot/dbmigrations,nick0x01/dbmigrations,jakubfijalkowski/dbmigrations,creswick/dbmigrations,anton-dessiatov/dbmigrations