From 0d3183e58bd78632a5c3f672caa42d056ac51cb5 Mon Sep 17 00:00:00 2001
From: Scott Ludwig <scottlu@gmail.com>
Date: Tue, 26 Jan 2016 12:08:47 -0800
Subject: [PATCH] Fix observed DEBUG build crash in assert handling

This is a second case of this problem. It didn't used to crash which
suggests vprintf used to check for NULL varargs itself.
---
 inc/rip.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/inc/rip.cpp b/inc/rip.cpp
index d33a510..b13a662 100644
--- a/inc/rip.cpp
+++ b/inc/rip.cpp
@@ -383,7 +383,11 @@ void DoRip(char *psz, va_list va)
 {
     printf("Assert:\n");
     printf("File: %s, Line: %d\n", gpszRipFile, giRipLine);
-    vprintf(psz, va);
+    if (va == NULL) {
+        printf(psz);
+    } else {
+        vprintf(psz, va);
+    }
     Break();
 }