patch 9.0.2127: translation Makefiles can be improved

Problem:  translation Makefiles can be improved
Solution: Modified and extended po-related Makefiles and
          related files

closes: #13518

Signed-off-by: RestorerZ <restorer@mail2k.ru>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/po/README_mingw.txt b/src/po/README_mingw.txt
index abb5cd7..d00ba30 100644
--- a/src/po/README_mingw.txt
+++ b/src/po/README_mingw.txt
@@ -20,7 +20,7 @@
 First of all you must set the environment variable LANGUAGE to xx, where xx is
 the name of your language. You can do it from the command line or adding a
 line to your autoexec.bat file: set LANGUAGE=xx. You must also add your
-language to the Make_ming.mak file in the lines LANGUAGES, MOFILES, AND
+language to the Make_all.mak file in the lines LANGUAGES, MOFILES, AND
 POFILES.
 
 If you don't have a xx.po file, you must create it with the command: