commands: deprecate the heads -a option
Hopefully we can remove it entirely in two releases or so.
hg: config error at $HGRCPATH:1: 'invalid'
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
[paths]
default = .../foo%bar
default = .../foo%bar
bundle.mainreporoot=.../foobar
paths.default=.../foo%bar
hg: config error at $HGRCPATH:2: ' x = y'
foo.bar=a\nb\nc\nde\nfg
foo.baz=bif cb
hg: config error at $HGRCPATH:1: cannot include /no-such-file (No such file or directory)