nls: Update POTFILES.in.

* po/guix/POTFILES.in: Add missing files that contain messages to be
translated.  Reorder a little.  Remove duplicates.

Change-Id: Ib31cda5e9ea6b5363e0c9d9d9aaf6448d2fe4b72

po/guix/POTFILES.in

@@ -4,14 +4,26 @@ gnu.scm
 gnu/packages.scm
 gnu/services.scm
 gnu/system.scm
+gnu/services/audio.scm
 gnu/services/base.scm
 gnu/services/certbot.scm
 gnu/services/configuration.scm
+gnu/services/desktop.scm
+gnu/services/docker.scm
 gnu/services/file-sharing.scm
+gnu/services/lightdm.scm
+gnu/services/linux.scm
+gnu/services/monitoring.scm
 gnu/services/networking.scm
-gnu/services/shepherd.scm
+gnu/services/rsync.scm
 gnu/services/samba.scm
+gnu/services/security.scm
+gnu/services/shepherd.scm
+gnu/services/sound.scm
+gnu/services/ssh.scm
+gnu/services/telephony.scm
 gnu/services/version-control.scm
+gnu/services/vpn.scm
 gnu/home/services.scm
 gnu/home/services/desktop.scm
 gnu/home/services/dotfiles.scm
@@ -32,23 +44,14 @@ gnu/system/file-systems.scm
 gnu/system/image.scm
 gnu/system/linux-container.scm
 gnu/system/mapped-devices.scm
+gnu/system/pam.scm
 gnu/system/shadow.scm
-guix/import/egg.scm
+gnu/image.scm
-guix/import/cpan.scm
-guix/import/cran.scm
-guix/import/elpa.scm
-guix/import/github.scm
-guix/import/git.scm
-guix/import/gnu.scm
-guix/import/go.scm
-guix/import/minetest.scm
-guix/import/opam.scm
-guix/import/pypi.scm
-guix/import/texlive.scm
 gnu/installer.scm
 gnu/installer/connman.scm
 gnu/installer/hardware.scm
 gnu/installer/hostname.scm
+gnu/installer/kernel.scm
 gnu/installer/keymap.scm
 gnu/installer/locale.scm
 gnu/installer/newt.scm
@@ -56,6 +59,7 @@ gnu/installer/newt/ethernet.scm
 gnu/installer/newt/final.scm
 gnu/installer/newt/parameters.scm
 gnu/installer/newt/hostname.scm
+gnu/installer/newt/kernel.scm
 gnu/installer/newt/keymap.scm
 gnu/installer/newt/locale.scm
 gnu/installer/newt/menu.scm
@@ -82,10 +86,13 @@ gnu/packages/bootstrap.scm
 guix/build/utils.scm
 guix/scripts.scm
 guix/scripts/build.scm
-guix/diagnostics.scm
+gnu/bootloader.scm
-guix/discovery.scm
+gnu/build/file-systems.scm
+gnu/compression.scm
 guix/ci.scm
 guix/cve.scm
+guix/diagnostics.scm
+guix/discovery.scm
 guix/git-authenticate.scm
 guix/gnupg.scm
 guix/graph.scm
@@ -101,16 +108,14 @@ guix/scripts/gc.scm
 guix/scripts/git.scm
 guix/scripts/git/authenticate.scm
 guix/scripts/hash.scm
-guix/scripts/import.scm
-guix/scripts/import/minetest.scm
-guix/scripts/import/cran.scm
-guix/scripts/import/elpa.scm
 guix/scripts/pull.scm
 guix/scripts/substitute.scm
 guix/scripts/authenticate.scm
 guix/scripts/system.scm
 guix/scripts/system/edit.scm
+guix/scripts/system/installer.scm
 guix/scripts/system/search.scm
+guix/scripts/system/reconfigure.scm
 guix/scripts/lint.scm
 guix/scripts/locate.scm
 guix/scripts/publish.scm
@@ -146,30 +151,52 @@ guix/substitutes.scm
 guix/deprecation.scm
 guix/derivations.scm
 guix/scripts/archive.scm
-guix/scripts/build.scm
 guix/scripts/discover.scm
+guix/scripts/shell.scm
 guix/scripts/environment.scm
+guix/scripts/style.scm
 guix/scripts/home/edit.scm
 guix/scripts/home/import.scm
 guix/scripts/home.scm
 guix/scripts/time-machine.scm
+guix/scripts/import.scm
+guix/import/utils.scm
+guix/import/composer.scm
 guix/scripts/import/cpan.scm
+guix/import/cpan.scm
+guix/scripts/import/cran.scm
+guix/import/cran.scm
 guix/scripts/import/crate.scm
+guix/import/crate.scm
 guix/scripts/import/egg.scm
+guix/import/egg.scm
+guix/import/elm.scm
+guix/scripts/import/elpa.scm
+guix/import/elpa.scm
 guix/scripts/import/gem.scm
+guix/import/git.scm
+guix/import/github.scm
+guix/import/gnome.scm
 guix/scripts/import/gnu.scm
+guix/import/gnu.scm
 guix/scripts/import/go.scm
+guix/import/go.scm
 guix/scripts/import/hackage.scm
+guix/scripts/import/hexpm.scm
 guix/scripts/import/json.scm
+guix/scripts/import/minetest.scm
+guix/import/minetest.scm
+guix/scripts/import/npm-binary.scm
+guix/import/opam.scm
 guix/scripts/import/opam.scm
 guix/scripts/import/pypi.scm
+guix/import/pypi.scm
 guix/scripts/import/stackage.scm
+guix/import/stackage.scm
 guix/scripts/import/texlive.scm
+guix/import/texlive.scm
 guix/scripts/offload.scm
 guix/scripts/perform-download.scm
 guix/scripts/refresh.scm
 guix/scripts/repl.scm
-guix/scripts/shell.scm
-guix/scripts/style.scm
-guix/scripts/system/reconfigure.scm
 nix/nix-daemon/guix-daemon.cc