Merge branch 'cc/help'

* cc/help: Documentation/git-help: typofix help: warn if specified 'man.viewer' is unsupported, instead of erroring out Documentation: help: explain 'man.viewer' multiple values help: implement multi-valued "man.viewer" config option Documentation: help: describe 'man.viewer' config variable help: add "man.viewer" config var to use "woman" or "konqueror"