Use literal as format

weltling · weltling · commit 16570b8c7994 · 2018-03-12T16:00:24.000+01:00
diff --git a/ext/standard/exec.c b/ext/standard/exec.c
@@ -565,7 +565,7 @@ PHP_FUNCTION(proc_nice)
 	php_ignore_value(nice(pri));
 	if (errno) {
 #ifdef PHP_WIN32
-		php_error_docref(NULL, E_WARNING, php_win_err());
+		php_error_docref(NULL, E_WARNING, "%s", php_win_err());
 #else
 		php_error_docref(NULL, E_WARNING, "Only a super user may attempt to increase the priority of a process");
 #endif
