patch 8.2.1269: language and locale code spread out

Problem:    Language and locale code spread out.
Solution:   Move relevant code to src/locale.c. (Yegappan Lakshmanan,
            closes #6509)
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 3e8bb04..dedc98d 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -751,6 +751,7 @@
 	$(OUTDIR)/insexpand.o \
 	$(OUTDIR)/json.o \
 	$(OUTDIR)/list.o \
+	$(OUTDIR)/locale.o \
 	$(OUTDIR)/main.o \
 	$(OUTDIR)/map.o \
 	$(OUTDIR)/mark.o \