cmdutil: minor refactoring of changeset_printer._show
- use ctx.branch() instead of directly accessing the extra field "branch"
- move definitions of locals ('extra' and 'branch') down to where they
are used
commands: search for translated version of "DEPRECATED"
The option description is already translated at this point, so we must
search for a translation of "DEPRECATED".
convert: document parent order in splicemap help (
issue1764)
util: use sys.argv[0] if $HG is unset and 'hg' is not in PATH
This is necessary when the executable name is not 'hg'. For example,
if your system-wide mercurial is name 'hgs', sys.argv[0] is more
accurate than 'hg'.