patch 8.1.1927: code for dealing with script files is spread out

Problem:    Code for dealing with script files is spread out.
Solution:   Move the code to scriptfile.c. (Yegappan Lakshmanan, closes #4861)
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 6a3cf81..bb4c739 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -760,6 +760,7 @@
 	$(OUTDIR)/profiler.o \
 	$(OUTDIR)/quickfix.o \
 	$(OUTDIR)/regexp.o \
+	$(OUTDIR)/scriptfile.o \
 	$(OUTDIR)/screen.o \
 	$(OUTDIR)/search.o \
 	$(OUTDIR)/session.o \