- Replace vsprintf function in bg_lib.c with vsnprintf implementation started by Patrick Powell.

- Remove all calls to vsprintf in the engine and gamecode and replace them with calls to vsnprintf.

code/ui/ui_shared.c

@@ -258,7 +258,7 @@ void PC_SourceWarning(int handle, char *format, ...) {
 	static char string[4096];
 
 	va_start (argptr, format);
-	vsprintf (string, format, argptr);
+	Q_vsnprintf (string, sizeof(string), format, argptr);
 	va_end (argptr);
 
 	filename[0] = '\0';
@@ -280,7 +280,7 @@ void PC_SourceError(int handle, char *format, ...) {
 	static char string[4096];
 
 	va_start (argptr, format);
-	vsprintf (string, format, argptr);
+	Q_vsnprintf (string, sizeof(string), format, argptr);
 	va_end (argptr);
 
 	filename[0] = '\0';