From 30b0e5f82ee72ee78b202506b4e12f7992af270d Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Mon, 15 Apr 2019 23:56:35 +0200
Subject: [PATCH] AK: Make StringBuilder::appendf() pre-allocate the format
 string length.

---
 AK/StringBuilder.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/AK/StringBuilder.cpp b/AK/StringBuilder.cpp
index 8eb7479aea..08776dd3f3 100644
--- a/AK/StringBuilder.cpp
+++ b/AK/StringBuilder.cpp
@@ -52,6 +52,7 @@ void StringBuilder::appendf(const char* fmt, ...)
 {
     va_list ap;
     va_start(ap, fmt);
+    will_append(strlen(fmt));
     appendvf(fmt, ap);
     va_end(ap);
 }