diff --git a/[refs] b/[refs]
index 56058aa8f9ef..284fe3f7da7e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 27d68a36c4f1ca2fc6be82620843493462c08c51
+refs/heads/master: 0a6047eef1c465c38aacfbdab193161b3f0cd144
diff --git a/trunk/lib/vsprintf.c b/trunk/lib/vsprintf.c
index 797428afd111..bed7229378f2 100644
--- a/trunk/lib/vsprintf.c
+++ b/trunk/lib/vsprintf.c
@@ -489,7 +489,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 		if (str < end)
 			*str = '\0';
 		else
-			*end = '\0';
+			end[-1] = '\0';
 	}
 	/* the trailing null byte doesn't count towards the total */
 	return str-buf;