[PATCH v11 0/5][BZ 10871] Month names in alternative grammatical case

[Rafal Luzynski <digitalfreak at lingonborough dot com>]

As requested by Carlos, [1] this is the 11th version of my patches.
This version is actually the same as the previous one, [2] it is only
rebased to the current master.

Again, note that this set contains only patches 1/5, 3/5, and 5/5.
The patches 2/5 and 4/5 contain updates to the generated files and
ChangeLog, they should be eventually squashed but not posted to this list.

As we are short of time, these patches are not attached to bugzilla. [3]

Additionally, I'm adding the locale data patch for pl_PL.  It may be
considered as a separate patch but I am going to push it as soon as all
other patches are accepted.  This patch is already accepted by the Polish
translation team.  Note that the change introduced by this set of patches
will be visible only in locales which actually contain different "mon"
and "alt_mon" arrays.

Regards,

Rafal


[1] https://sourceware.org/ml/libc-alpha/2018-01/msg00257.html
[2] https://sourceware.org/ml/libc-alpha/2017-11/msg00569.html
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=10871