[gimp] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit e5add3a776a12d76b08ce7869abc5dcedde512b0
Author: Jordi Mas <jmas softcatala org>
Date:   Sat Mar 3 19:25:45 2018 +0100

    Update Catalan translation

 po-script-fu/ca.po |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/po-script-fu/ca.po b/po-script-fu/ca.po
index bb49d4f..20919d2 100644
--- a/po-script-fu/ca.po
+++ b/po-script-fu/ca.po
@@ -1654,7 +1654,7 @@ msgstr "Foscor de l'ombra"
 
 #: ../plug-ins/script-fu/scripts/weave.scm:400
 msgid "Shadow depth"
-msgstr "Profunditat de l’ombra"
+msgstr "Profunditat de l'ombra"
 
 #: ../plug-ins/script-fu/scripts/weave.scm:401
 msgid "Thread length"
@@ -1695,7 +1695,7 @@ msgstr "Realçament del color"
 
 #: ../plug-ins/script-fu/scripts/xach-effect.scm:132
 msgid "Highlight opacity"
-msgstr "Realçament de l’opacitat"
+msgstr "Realçament de l'opacitat"
 
 #: ../plug-ins/script-fu/scripts/xach-effect.scm:133
 msgid "Drop shadow color"