A bunch of small changes from scrutinizer-ci; some tidying, some actual bug fixes

ext/log_net/main.php

@@ -42,6 +42,7 @@ class LogNet extends Extension {
 			fwrite($fp, "$data\n");
 			fclose($fp);
 		} catch (Exception $e) {
+            /* logging errors shouldn't break everything */
 		}
 	}
 }