Bug 34213: import_patrons.pl - Fix short version of matchpoint option in POD

Bug 34213: import_patrons.pl - Fix short version of matchpoint option in POD

 44     'c|confirm'                      => \$confirm,

 46     'm|matchpoint=s'                 => \$matchpoint,

The POD is wrong.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 2442a4537d4d439bdf27e031116f98d880e47e09)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 5fcaf0aa09bbc76a6b010e9e93a6696308bea9a6)
Signed-off-by: Pedro Amorim <pedro.amorim@ptfs-europe.com>