get-bugzilla-attachments: actually use the fdo bugzilla

bugs.libreoffice.org redirects to bugs.documentfoundation.org,
which isn't very helpful as it just causes duplicate downloads.

Arguably freedesktop.org could be removed; the are just ~5 interesing
attachments since the TDF bugzilla migration.

Change-Id: I26d2667848582209e382226108c47549e99cee97

bin/get-bugzilla-attachments-by-mimetype

@@ -339,7 +339,7 @@ def get_launchpad_bugs(prefix):
 
 rss_bugzillas = (
     ( 'abi', 'http://bugzilla.abisource.com/buglist.cgi' ), #added for abiword
-    ( 'fdo', 'http://bugs.libreoffice.org/buglist.cgi' ),
+    ( 'fdo', 'http://bugs.freedesktop.org/buglist.cgi' ),
     ( 'gentoo', 'http://bugs.gentoo.org/buglist.cgi' ),
     ( 'gnome', 'http://bugzilla.gnome.org/buglist.cgi' ), # added for gnumeric
     ( 'kde', 'http://bugs.kde.org/buglist.cgi' ), # added for koffice/calligra