Fix exception type catched from Exception to proper PDOException

misc/update/nix/multiprocessing/.do_not_run/switch.php

@@ -327,7 +327,7 @@ function collectionCheck(&$pdo, $groupID)
 		if ($pdo->queryOneRow(sprintf('SELECT id FROM collections_%d LIMIT 1', $groupID)) === false) {
 			exit();
 		}
-	} catch (\Exception $e) {
+	} catch (\PDOException $e) {
 	}
 }
 

nntmux/libraries/Forking.php

@@ -601,7 +601,7 @@ class Forking extends \fork_daemon
 					if ($this->pdo->queryOneRow(sprintf('SELECT id FROM collections_%d  LIMIT 1', $group['id'])) !== false) {
 						$this->work[] = ['id' => $group['id']];
 					}
-				} catch (\Exception $e) {
+				} catch (\PDOException $e) {
 				}
 			}
 		}