updated for version 7.3.143
Problem:    Memfile is not tested sufficiently.  Looking up blocks in a
            memfile is slow when there are many blocks.
Solution:   Add high level test and unittest.  Adjust the number of hash
            buckets to the number of blocks.  (Ivan Krasilnikov)
diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index 833a82a..b840a21 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -25,7 +25,7 @@
 		test59.out test60.out test61.out test62.out test63.out \
 		test64.out test65.out test66.out test67.out test68.out \
 		test69.out test70.out test71.out test72.out test73.out \
-		test74.out test75.out test76.out
+		test74.out test75.out test76.out test77.out
 
 SCRIPTS_GUI = test16.out
 
@@ -71,7 +71,7 @@
 		  fi \
 		else echo $* NO OUTPUT >>test.log; \
 		fi"
-	-rm -rf X* test.ok viminfo
+#	-rm -rf X* test.ok viminfo
 
 test49.out: test49.vim