test-help: improve test coverage
Adds a test for using the help option with the version option.
Extends test coverage of commands.help_ by another 2 lines.
#!/bin/sh
hg
hg -q
hg help
hg -q help
echo %% test short command list with verbose option
hg -v help shortlist | sed 's/[(]version [^)]*[)]/(version xxx)/'
hg add -h
echo %% test help option with version option
hg add -h --version | sed 's/[(]version [^)]*[)]/(version xxx)/'
hg add --skjdfks
hg help diff
hg help status
hg -q help status
hg help foo
hg skjdfks
exit 0