The following error message has bothered me for a while: :nmap <buffer> <F3> :echo "foobar"<CR>
:unmap <F3>
E31: No such mapping
Is there any chance of adding a separate message for when a local map
exists? If not, at least add a note to the docs for E31: it suggests
checking for trailing white space, but it does not suggest trying
:unmap <buffer> .
--Benji Fisher
