Catch illegal boolean values in hgrc nicely. With hg 0.9.3 the section and parameter name wasn't printed, with hg 0.9.4 there was a traceback for ValueError.

adding da/foo
adding foo
% manifest
200 Script output follows


drwxr-xr-x da
-rw-r--r-- 4 foo


200 Script output follows


-rw-r--r-- 4 foo