InitFS: change prompt to return a concrete type instead of Char
InitFS: change prompt to return a concrete type instead of Char

Ignore-this: 37d7d2d182e68cf3a99ccb4ca08eaefa

darcs-hash:20090728170842-e018d-b963177d539aa62809a1fe056dade205f4ace6a1.gz

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