[libgweather] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit f52826c6be41ef6c5b7d1af3d215f79552d77757
Author: Jordi Mas <jmas softcatala org>
Date:   Sun Feb 3 15:39:23 2019 +0100

    Update Catalan translation

 po/ca.po | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/po/ca.po b/po/ca.po
index 06e696f..d7c3fd5 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -32,7 +32,7 @@ msgstr "S'està carregant…"
 
 #: libgweather/gweather-timezone.c:343
 msgid "Greenwich Mean Time"
-msgstr "Hora mitja de Greenwich"
+msgstr "Temps mitjà a Greenwich"
 
 #: libgweather/gweather-timezone-menu.c:274
 msgctxt "timezone"
@@ -821,7 +821,7 @@ msgstr "Remolins de pols a la rodalia"
 
 #: libgweather/gweather-weather.c:793
 msgid "%a, %b %d / %H∶%M"
-msgstr "%A, %d %B / %H∶%M"
+msgstr "%A, %-d %B / %H:%M"
 
 #: libgweather/gweather-weather.c:799
 msgid "Unknown observation time"