Bug 33946: Resync opac/intranet includes

Bug 33946: Resync opac/intranet includes

This patch resyncs the whitespace chomping in the opac include to match
that in the intranet include so aid in diffing between the two.

No changes should be visible in the UI but there may be cleaner markup
as a result.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 04814be829ad99bb5a5302f84419528d64548465)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>