When processing a (..) multiline section, each line is processed and
if it starts with a '@' it is not echoed, but more importantly if is
'rem' then anything else on that line should be ignored. The reported
issue was that a pipe was being executed when it was hidden behind a
rem, which was trigged by the preceeding '@' character not being
skipped.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45729Signed-off-by: Jason Edmeades <us@edmeades.me.uk>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>