patch 8.1.2259: running tests may leave XfakeHOME behind

Problem:    Running tests may leave XfakeHOME behind.
Solution:   Source summarize.vim without using setup.vim. (closes #5177)
            Also fix that on MS-Windows the test log isn't echoed.

src/testdir/Make_dos.mak

@@ -75,7 +75,7 @@ report:
 	$(VIMPROG) -u NONE $(NO_INITS) -S summarize.vim messages
 	@echo.
 	@echo Test results:
-	@type test_result.log
+	@cmd /c type test_result.log
 	@if exist test.log ( echo TEST FAILURE & exit /b 1 ) \
 		else ( echo ALL DONE )
 

src/testdir/Makefile

@@ -54,7 +54,7 @@ report:
 		then cp test.log test_result.log; \
 		else echo No failures reported > test_result.log; \
 		fi"
-	$(RUN_VIMTEST) $(NO_INITS) -S summarize.vim messages $(REDIR_TEST_TO_NULL)
+	$(VIMPROG) -u NONE $(NO_INITS) -S summarize.vim messages $(REDIR_TEST_TO_NULL)
 	@echo
 	@echo 'Test results:'
 	@cat test_result.log

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2259,
 /**/
     2258,
 /**/