Tests: let --valgrind imply --verbose and --tee

It does not make much sense to run the (expensive) valgrind tests and
not look at the output.

To prevent output from scrolling out of reach, the parameter --tee is
implied, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/Makefile

@@ -39,6 +39,6 @@ full-svn-test:
 	$(MAKE) $(TSVN) GIT_SVN_NO_OPTIMIZE_COMMITS=0 LC_ALL=en_US.UTF-8
 
 valgrind:
-	GIT_TEST_OPTS='--valgrind -v --tee' $(MAKE) -k
+	GIT_TEST_OPTS=--valgrind $(MAKE)
 
 .PHONY: pre-clean $(T) aggregate-results clean valgrind

t/README

@@ -65,6 +65,10 @@ appropriately before running "make".
 	the test script when running under -i).  Valgrind errors
 	go to stderr, so you might want to pass the -v option, too.
 
+	Since it makes no sense to run the tests with --valgrind and
+	not see any output, this option implies --verbose.  For
+	convenience, it also implies --tee.
+
 --tee::
 	In addition to printing the test output to the terminal,
 	write it to files named 't/test-results/$TEST_NAME.out'.

t/test-lib.sh

@@ -9,7 +9,7 @@ case "$GIT_TEST_TEE_STARTED, $* " in
 done,*)
 	# do not redirect again
 	;;
-*' --tee '*)
+*' --tee '*|*' --va'*)
 	mkdir -p test-results
 	BASE=test-results/$(basename "$0" .sh)
 	(GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
@@ -111,7 +111,7 @@ do
 		# noop now...
 		shift ;;
 	--va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
-		valgrind=t; shift ;;
+		valgrind=t; verbose=t; shift ;;
 	--tee)
 		shift ;; # was handled already
 	*)