localrepo: drop dead comment

record: re-enable whitespace-ignoring options It looks like somewhere down the line, patch.diffopts changed the names of the options that it recognises, but record.recordfunc wasn't updated to the new names. Instead of trying to write down names at all, we now use whatever names are provided in commands.diffwsopts and pass that along to patch.diffopts, along with a couple of custom options

record: use commands.diffwsopts instead of ad-hoc diffopts The record extension is writing its own version of commands.diffwsopts which is identical to commands.diffwsopts. Based on the principle that code duplication increases maintenance burden, this patch removes record's ad-hoc diffopts in favour of commands.diffwsopts