[gnome-control-center] Update POTFILES.skip

[Piotr Drąg <piotrdrag src gnome org>]

commit 33d5924c117739202066382d42768373c264497e
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Fri Jan 18 17:53:07 2019 +0100

    Update POTFILES.skip

 po/POTFILES.skip | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index fb851879c..dfa39b51e 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -2,11 +2,15 @@
 # Please keep this file sorted alphabetically.
 panels/user-accounts/fingerprint-strings.h
 subprojects/libhandy/examples/example-window.ui
+subprojects/libhandy/src/hdy-action-row.c
 subprojects/libhandy/src/hdy-arrows.c
 subprojects/libhandy/src/hdy-column.c
+subprojects/libhandy/src/hdy-combo-row.c
 subprojects/libhandy/src/hdy-dialer-button.c
 subprojects/libhandy/src/hdy-dialer.c
 subprojects/libhandy/src/hdy-dialer-cycle-button.c
+subprojects/libhandy/src/hdy-expander-row.c
 subprojects/libhandy/src/hdy-header-group.c
 subprojects/libhandy/src/hdy-leaflet.c
+subprojects/libhandy/src/hdy-search-bar.c
 subprojects/libhandy/src/hdy-title-bar.c