system/guix: Update README and Fix UID/GID.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/guix/README

@@ -18,13 +18,13 @@ if [ -x /etc/rc.d/rc.guix ]; then
 fi
 
 The daemon requires users for building the guix packages, which should be added
-under the 'guixbld' group.
+under the 'guixbuild' group.
 
-groupadd --system guixbuild
+groupadd -g 316 guixbuild
 for i in `seq -w 1 10`; do
-          useradd -g guixbuild -G guixbuild \
+          useradd -G guixbuild \
           -d /var/empty -s `which nologin` \
-          -c "Guix build user $i" --system \
+          -c "Guix build user $i" -u 316 -g 316 \
           guixbuilder$i;
 done
 
@@ -42,4 +42,7 @@ root partition /gnu can be mounted on another partition.
 
 Guix can either be built with the nix-daemon instead of the default guix-daemon or along
 side nix sharing the same store, both require nix as an optional dependency. To build with
-the nix-daemon use NIX="yes" and to share the store with nix use SHARE="yes".
+the nix-daemon use NIX="yes" and to share the store with nix use SHARE="yes".
+
+guile-json is an optional dependency and will allow you to use the 'guix import pypi' command.
+It is of interest primarily for developers and not for casual users.

system/guix/guix.SlackBuild

@@ -116,7 +116,6 @@ rm -f $PKG/usr/info/dir
 gzip -9 $PKG/usr/info/*.info*
 
 rm -fr $PKG/usr/lib${LIBDIRSUFFIX}/systemd
-rm -rf $PKG/gnu
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
 cp -a ABOUT-NLS AUTHORS COPYING ChangeLog HACKING INSTALL NEWS README ROADMAP THANKS TODO \