rebuild with ghc 8.8.1, cabal-doctest 1.0.7, polyparse 1.13, primitive 0.7.0.0, regex-base 0.94.0.0, regex-pcre 0.95.0.0, regex-posix 0.96.0.0, regex-tdfa 1.3.1.0, easytest 0.3

FTR, commands used to change arch=() and then verify the changes:

$ sed -Ei "/^arch=/{s/ *?['\"]?i686['\"]? *?//;s/ *$//}" */*/PKGBUILD*

$ grep -r i686 * | grep arch= | grep -v repos

$ svn diff | grep -A 1 ^-[^-] | grep -v -- -- | cut -c2- |
  while IFS=$'\n' read -r l1; IFS=$'\n' read -r l2; do
    echo "$l1 -> $l2"
  done | sort -u