Add a trailing full stop to the kernel32 error messages

[Francois Gouget]

Translators: This may concern you! See the (*) below.
(hence the post to wine-devel)

It was discovered that the kernel32 error messages are supposed to all 
end with a full stop. This is a lot of strings and impacts a lot of 
translations.

http://www.winehq.org/pipermail/wine-devel/2012-January/093969.html

So this fix is not provided as a patch but as a set of two scripts.
 * mcfix adds a trailing full stop if needed to the kernel32 error 
   messages.
 * pofix does the matching changes to the specified PO file both on the 
   English and translated strings (taking into account the full-width 
   for Chinese and Japanese translations).

The advantage is that this can update everything with no fuzzying and 
without risking conflicts when applying it to Wine(*). To update Wine, 
simply run:

./mcfix dlls/kernel32/winerror.mc; for i in po/*.po;do ./pofix $i;done

(*) As a translator if you have a local PO file that you took before 
this change and you modified some kernel32 error translations you patch 
will conflict. But that's easy to solve, simply run:

./pofix myfile.po