patch 9.1.0559: translation of vim scripts can be improved

Problem:  translation of vim scripts can be improved
          (after v9.1.0509)
Solution: improve documentation, add tests, include missing
          libraries for the Windows CI
          (RestorerZ)

closes: #15100

Signed-off-by: RestorerZ <restorer@mail2k.ru>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index f199fec..76d4429 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -166,6 +166,7 @@
 	test_gettext \
 	test_gettext_cp1251 \
 	test_gettext_utf8 \
+	test_gettext_make \
 	test_getvar \
 	test_gf \
 	test_glob2regpat \
@@ -428,6 +429,7 @@
 	test_gettext.res \
 	test_gettext_cp1251.res \
 	test_gettext_utf8.res \
+	test_gettext_make.res \
 	test_getvar.res \
 	test_gf.res \
 	test_gn.res \