- 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/botlib/l_precomp.c

@@ -131,7 +131,7 @@ void QDECL SourceError(source_t *source, char *str, ...)
 	va_list ap;
 
 	va_start(ap, str);
-	vsprintf(text, str, ap);
+	Q_vsnprintf(text, sizeof(text), str, ap);
 	va_end(ap);
 #ifdef BOTLIB
 	botimport.Print(PRT_ERROR, "file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text);
@@ -155,7 +155,7 @@ void QDECL SourceWarning(source_t *source, char *str, ...)
 	va_list ap;
 
 	va_start(ap, str);
-	vsprintf(text, str, ap);
+	Q_vsnprintf(text, sizeof(text), str, ap);
 	va_end(ap);
 #ifdef BOTLIB
 	botimport.Print(PRT_WARNING, "file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text);