Variables on the stack must be initialized or we can't depend on any

initial value.  For errline/errorline, we did depend on that, erroneously

apps/req.c

@@ -542,7 +542,7 @@ bad:
 
 	if (template != NULL)
 		{
-		long errline;
+		long errline = -1;
 
 		if( verbose )
 			BIO_printf(bio_err,"Using configuration from %s\n",template);