fix an exception in gpg.py with multiples sigs for the same cset
- silly error, do not overwrite the variable we use for iterating
- correct 'hg help sign'
adding aadding baNONEXISTENT: No such file or directoryaba: No such file or directoryNONEXISTENT: No such file or directorybaNONEXISTENT: No such file in rev 9e1684505872ab