gedit's en-US encoding menu has ISO-8859-15 by default, should have windows-1252

[Henri Sivonen]

Steps to reproduce:
 * Use a fresh en-US install of Ubuntu 14.04
 * Open a file that's not valid UTF-8 in gedit

Actual results:
gedit offers to open the file using a non-UTF-8 encoding. By default, the menu has one non-UTF-8 item: ISO-8859-15.

Expected results:
Expected the single pre-populated item in the menu to be windows-1252 instead of ISO-8859-15.

Additional info:
ISO-8859-15 post-dates UTF-8 and is not actually as common a legacy encoding as ISO-8859-1 and windows-1252. windows-1252 is a superset of ISO-8859-1, so there's no point in having ISO-8859-1 in the menu. However, if one is opening legacy files, having windows-1252 in the menu is useful. Putting ISO-8859-15 in the menu instead looks like anti-Microsoft political posturing that's detached from practicality.

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.