updated for version 7.4.648

Problem:    Tests broken on MS-Windows.
Solution:   Delete wrong copy line. (Ken Takata)

src/testdir/Make_dos.mak

@@ -84,7 +84,6 @@ $(DOSTMP_INFILES): $(*B).in
 $(TEST_OUTFILES): $(DOSTMP)\$(*B).in
 	-@if exist test.out DEL test.out
 	move $(*B).in $(*B).in.bak
-	copy $*.in $(*B).in
 	copy $(DOSTMP)\$(*B).in $(*B).in
 	copy $(*B).ok test.ok
 	$(VIMPROG) -u dos.vim -U NONE --noplugin -s dotest.in $(*B).in

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    648,
 /**/
     647,
 /**/