[gnome-boxes] po: Rename pango attribute incorrectly localized

[Felipe Borges <felipeborges src gnome org>]

commit 2adbfcc35000b960277091a1d9619f862bfcfd33
Author: Daniel Davies <silicon octopus gmail com>
Date:   Fri Apr 12 18:28:58 2019 +0200

    po: Rename pango attribute incorrectly localized
    
    Localizing the color attribute prevented the text being rendered,
    disk sizes where not able to be seen when moving the slider
    in the virtual machine properties.
    
    Fixes #162

 po/en_GB.po | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/po/en_GB.po b/po/en_GB.po
index d77b5c7f..64740416 100644
--- a/po/en_GB.po
+++ b/po/en_GB.po
@@ -846,7 +846,7 @@ msgid ""
 "<span color=\"grey\">Maximum Disk Size</span>\t\t %s <span color=\"grey"
 "\">(%s used)</span>"
 msgstr ""
-"<span colour=\"grey\">Maximum Disk Size</span>\t\t %s <span colour=\"grey"
+"<span color=\"grey\">Maximum Disk Size</span>\t\t %s <span color=\"grey"
 "\">(%s used)</span>"
 
 #: src/libvirt-machine-properties.vala:475