RFR: JDK-8191744: Remove typo in makefile

[Erik Joelsson]

I seem to have fat fingered some extra letters into a makefile in a 
recent change. Those need to be removed. Thanks to Magnus who saw it, 
albeit too late to stop me.

Bug: https://bugs.openjdk.java.net/browse/JDK-8191744

Patch:

diff -r 53440b6353b6 test/make/TestCopyFiles.gmk
--- a/test/make/TestCopyFiles.gmk
+++ b/test/make/TestCopyFiles.gmk
@@ -52,7 +52,7 @@
      $(TOUCH) $(SRC_DIR)/foo/foofile
      $(TOUCH) "$(SRC_DIR)/foo/foo file"
          # Spaces in directories only works with gnu make 4.0 or later
-        ifeq (4.0dfd, $(firstword $(sort 4.0 $(MAKE_VERSION))))
+        ifeq (4.0, $(firstword $(sort 4.0 $(MAKE_VERSION))))
        $(MKDIR) -p "$(SRC_DIR)/foo bar"
        $(TOUCH) "$(SRC_DIR)/foo bar/foobarfile"
        $(TOUCH) "$(SRC_DIR)/foo bar/foo bar file"


/Erik