Fix maintainer list format and improve vanity.sh reliability

maintainers/scripts/vanity.sh

@@ -12,7 +12,7 @@ git_data="$(echo "$raw_git_log" | grep 'Author:' |
 # Also there are a few manual entries
 maintainers="$(cat "$(dirname "$0")/../../lib/maintainers.nix" |
   grep '=' | sed -re 's/\\"/''/g;
-  s/ *([^ =]*) *= *" *(.*[^ ]) *[<](.*)[>] *".*/\1\t\2\t\3/')"
+  s/[ 	]*([^ 	=]*)[ 	]*=[ 	]*" *(.*[^ ]) *[<](.*)[>] *".*/\1\t\2\t\3/')"
 git_lines="$( ( echo "$git_data";
     cat "$(dirname "$0")/vanity-manual-equalities.txt") | sort |uniq)"