largefiles: override cmdutil.revert() instead of comands.revert()...
largefiles: override cmdutil.revert() instead of comands.revert()
By overriding the cmdutil method we don't need to override both the
function and the command. Also, we get access to the 'ctx' and
'parents' variables, which will soon prove useful.
Rename the 'ctx' argument to overridematch() to 'mctx' rather than
letting it shadow new 'ctx'.
