Bug 18342: Mark Cache::Memcached as mandatory

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

C4/Installer/PerlDependencies.pm

@@ -254,7 +254,7 @@ our $PERL_DEPS = {
     },
     'Cache::Memcached' => {
         'usage'    => 'Caching',
-        'required' => '0',
+        'required' => '1',
         'min_ver'  => '1.30'
     },
     'Cache::Memcached::Fast' => {