# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1483704442 -3600
# Node ID 2120d71b0d56f4b321de1d72efe03f9e6a80b877
# Parent  56b0ae8cbb0217ab254dbfd2da3ef230c22f3c31
mod_register: Strip '+' char from field names without using length

diff -r 56b0ae8cbb02 -r 2120d71b0d56 plugins/mod_register.lua
--- a/plugins/mod_register.lua	Fri Jan 06 11:10:24 2017 +0100
+++ b/plugins/mod_register.lua	Fri Jan 06 13:07:22 2017 +0100
@@ -64,7 +64,7 @@
 		registration_form[#registration_form + 1] = field;
 	else
 		if field:match("%+$") then
-			field = field:sub(1, #field - 1);
+			field = field:sub(1, -2);
 			field_map[field].required = true;
 		end