[dconf-editor] Fix typo in Portuguese translation

[Piotr Drąg <piotrdrag src gnome org>]

commit 51107ffeae03b7affe075926ef9c093fa694438c
Author: Robert Roth <robert roth off gmail com>
Date:   Sat May 13 15:09:42 2017 +0200

    Fix typo in Portuguese translation
    
    Fixes https://bugzilla.gnome.org/show_bug.cgi?id=773724

 po/pt.po |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/po/pt.po b/po/pt.po
index 3578944..a184345 100644
--- a/po/pt.po
+++ b/po/pt.po
@@ -583,7 +583,7 @@ msgstr "Cadeia"
 
 #: editor/dconf-model.vala:199
 msgid "String array"
-msgstr "Matraiz de cadeias"
+msgstr "Matriz de cadeias"
 
 #: editor/dconf-model.vala:201
 msgid "Enumeration"