patch 7.4.999

Problem:    "make shadow" creates a broken link. (Tony Mechelynck)
Solution:   Remove vimrc.unix from the list.

src/Makefile

@@ -2481,7 +2481,6 @@ shadow:	runtime pixmaps
 	mkdir $(SHADOWDIR)/testdir
 	cd $(SHADOWDIR)/testdir; ln -s ../../testdir/Makefile \
 				 ../../testdir/Make_all.mak \
-				 ../../testdir/vimrc.unix \
 				 ../../testdir/*.in \
 				 ../../testdir/*.vim \
 				 ../../testdir/python* \

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    999,
 /**/
     998,
 /**/