Bug 24272: Use Pod2Usage and surround values with ''

Bug 24272: Use Pod2Usage and surround values with ''

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit b1915293441b7f61d0e61c6b7dd105de1bbd5d8e)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 1601911977dc427e11428190bf62f416023c381b)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
(cherry picked from commit 3cdc534a398eb24ccd113a55abd19d2c58ca1a01)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>