Use test_expect_success for test setups

Several tests did not use test_expect_success for their setup
commands.  Putting these start commands into the testing framework
means both that errors during setup will be caught quickly and that
non-error text will be suppressed without -v.

Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t9501-gitweb-standalone-http-status.sh

@@ -15,9 +15,10 @@ code and message.'
 # ----------------------------------------------------------------------
 # snapshot settings
 
-test_commit \
-	'SnapshotTests' \
-	'i can has snapshot?'
+test_expect_success 'setup' "
+	test_commit 'SnapshotTests' 'i can has snapshot?'
+"
+
 
 cat >>gitweb_config.perl <<\EOF
 $feature{'snapshot'}{'override'} = 0;