Can only SKIP LOCKED if locking rows. Remove FOR SHARE as it isn't supported on < mysql 8

scripts/ZoneMinder/lib/ZoneMinder/Filter.pm

@@ -413,13 +413,11 @@ sub Sql {
       $sql .= ' LIMIT 0,'.$filter_expr->{limit};
     }
     if ($$self{LockRows}) {
-      $sql .= ' FOR UPDATE OF E'
-    } else {
-      $sql .= ' FOR SHARE OF E'
-    }
+      $sql .= ' FOR UPDATE'
       if ($filter_expr->{skip_locked}) {
         $sql .= ' SKIP LOCKED';
       }
+    }
     $self->{Sql} = $sql;
   } # end if has Sql
   return $self->{Sql};