Fix skipping merge-order test with NO_OPENSSL=1.

Move git-rev-list --merge-order usage check for 'OpenSSL not linked' after
test 1; we cannot trigger this unless we try to actually use --merge-order
by giving some ref, and we do not have any ref until we run the first test
to create commits.
Signed-off-by: NGerrit Pape <pape@smarden.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

t/t6001-rev-list-merge-order.sh

@@ -8,13 +8,6 @@ test_description='Tests git-rev-list --merge-order functionality'
 . ./test-lib.sh
 . ../t6000lib.sh # t6xxx specific functions
 
-if git-rev-list --merge-order 2>&1 | grep 'OpenSSL not linked' >/dev/null
-then
-    test_expect_success 'skipping merge-order test' :
-    test_done
-    exit
-fi    
-
 # test-case specific test function
 check_adjacency()
 {
@@ -114,6 +107,13 @@ test_output_expect_success 'rev-list has correct number of entries' 'git-rev-lis
 19
 EOF
 
+if git-rev-list --merge-order HEAD 2>&1 | grep 'OpenSSL not linked' >/dev/null
+then
+    test_expect_success 'skipping merge-order test' :
+    test_done
+    exit
+fi
+
 normal_adjacency_count=$(git-rev-list HEAD | check_adjacency | grep -c "\^" | tr -d ' ')
 merge_order_adjacency_count=$(git-rev-list --merge-order HEAD | check_adjacency | grep -c "\^" | tr -d ' ')
 test_expect_success '--merge-order produces as many or fewer discontinuities' '[ $merge_order_adjacency_count -le $normal_adjacency_count ]'