fish: only use kbd on linux

+1
+1
pkgs/shells/fish/default.nix
··· 24 sed -e "s|expr|${coreutils}/bin/expr|" \ 25 '' + stdenv.lib.optionalString (!stdenv.isDarwin) '' 26 -e "s|if which unicode_start|if true|" \ 27 -e "s|unicode_start|${kbd}/bin/unicode_start|" \ 28 '' + '' 29 -i "$out/etc/fish/config.fish"
··· 24 sed -e "s|expr|${coreutils}/bin/expr|" \ 25 '' + stdenv.lib.optionalString (!stdenv.isDarwin) '' 26 -e "s|if which unicode_start|if true|" \ 27 + '' + stdenv.lib.optionalString stdenv.isLinux '' 28 -e "s|unicode_start|${kbd}/bin/unicode_start|" \ 29 '' + '' 30 -i "$out/etc/fish/config.fish"