help: refer to user configuration file more consistently
Currently, a number of commands and help topics mention the user hgrc
file in different ways. Among these are following:
1. .hgrc - "please specify your commit editor/username in your .hgrc
file", bookmarks, color, hgk, pager, hg help environment
2. $HOME/.hgrc - hg help paths, hgrc(5), hg(1)
3. ~/.hgrc - hgrc(5)
In addition to being inconsistent, none of these make sense on
Windows. This patch replaces the above with a more general term of
"[your] configuration file".
http://example.com/no/anchor, branches: (None, [])
http://example.com/an/anchor, branches: ('foo', [])
http://example.com/no/anchor/branches, branches: (None, ['foo'])
http://example.com/an/anchor/branches, branches: ('bar', ['foo'])
http://example.com/an/anchor/branches-None, branches: ('foo', [])