templatekw: fix join format of revset() function
It's been broken since e4609ec959f8, which made makemap() return a dict of
multiple keywords. Because the default joinfmt() randomly picks one item
from a dict, we have to make revset() select d[name] explicitly.
cmdutil: warnings not issued in remove if subrepopath overlaps
Previously a subrepository "sub" would cause no warnings to be issued
for a file "subnot/a" if it is not removed when calling:
hg remove -S "subnot/a"