%OWNER now strips ALL slashes

[znx]

(@    znx) .bmotion kutzooi parse %OWNER{marks\}
(@kutzooi) marks'

Whilst fixing ticket #127 (see changelog [881]), it seems I have now caused another issue :P At least this doesn't blow up TCL and instead just strips any slashes from the name.

Need to remove only slashes that didn't exist before, maybe replacing the regsub with another string map? I will look at it later