BUG/MINOR: mux-fcgi: Use a literal string as format in app_log()
This avoid any crashes if stderr messages contain format specifiers.
This patch partially fixes the issue #295. No backport needed.
diff --git a/src/mux_fcgi.c b/src/mux_fcgi.c
index ceff7fa..267fdf1 100644
--- a/src/mux_fcgi.c
+++ b/src/mux_fcgi.c
@@ -1931,7 +1931,7 @@
trash.area[ret] = '\n';
trash.area[ret+1] = '\0';
tag.area = fconn->app->name; tag.data = strlen(fconn->app->name);
- app_log(&fconn->app->logsrvs, &tag, LOG_ERR, trash.area);
+ app_log(&fconn->app->logsrvs, &tag, LOG_ERR, "%s", trash.area);
if (fconn->drl)
goto fail;