[evolution] Catalan translation update. Fixes formatters for calendar dates

[Jordi Mas <jmas src gnome org>]

commit d31bb2efa76a6edf8f5eb232ba5c2dbe8e3af476
Author: Jordi Mas <jmas softcatala org>
Date:   Sun Nov 25 22:08:08 2018 +0100

    Catalan translation update. Fixes formatters for calendar dates

 po/ca.po | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/po/ca.po b/po/ca.po
index aaf6070640..b4fd996965 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -12184,9 +12184,11 @@ msgstr "Calendari mensual"
 
 #. This is a strftime() format. %B = Month name.
 #: ../src/e-util/e-calendar-item.c:1333 ../src/e-util/e-calendar-item.c:2216
+# N.T.: Si usem %B es mostra 'de novembre' al calendari. Cal usar
+# %OB perquè no s'inclogui la preposició 'de'
 msgctxt "CalItem"
 msgid "%B"
-msgstr "%B"
+msgstr "%OB"
 
 #. This is a strftime() format. %Y = Year.
 #: ../src/e-util/e-calendar-item.c:1335
@@ -12196,9 +12198,11 @@ msgstr "%Y"
 
 #. This is a strftime() format. %B = Month name, %Y = Year.
 #: ../src/e-util/e-calendar-item.c:1372
+# N.T.: Si usem %B es mostra 'de novembre' al calendari. Cal usar
+# %OB perquè no s'inclogui la preposició 'de'
 msgctxt "CalItem"
 msgid "%B %Y"
-msgstr "%B %Y"
+msgstr "%OB del %Y"
 
 #: ../src/e-util/e-cal-source-config.c:169
 msgid "Mark as default calendar"