doc: Fix lessc maths breaking change
Fixes
@@ -27,7 +27,8 @@ stdenv.mkDerivation {
done
mkdir -p $out
- lessc index.less $out/styles.css
+ # --math=always to use 3.x compatible maths with lessc 4.x
+ lessc --math=always index.less $out/styles.css
'';
dontInstall = true;
