commit 4a1ab9b5ee25fba7e67b842a800ca030799830da
Author: Daniel Swanson <popcorn.tomato.dude@gmail.com>
Date:   Fri Jul 23 14:28:11 2021 -0500

    cursed be variable shadowing, for it is annoying to track down

diff --git a/static/regtest.js b/static/regtest.js
index c2ecfe6..3cda5e9 100644
--- a/static/regtest.js
+++ b/static/regtest.js
@@ -550,7 +550,6 @@ function btn_show_tab() {
             output = diff_stream(expect, text);
         } else {
 		    let diff = Diff.diffWordsWithSpace(expect, text);
-		    let output = '';
 		    for (let d=0 ; d<diff.length ; ++d) {
 			    if (diff[d].added) {
 				    output += '<ins>'+esc_html(diff[d].value)+'</ins>';