mingw: fix mingw_open_append to work with named pipes

diff --git a/t/t3421-rebase-topology-linear.sh b/t/t3421-rebase-topology-linear.sh
index b078f930462d7187546376c9fe2331b3e0303773..99b2aac9219da0e9a77e845509ca7b84c65ab88b 100755 (executable)
--- a/t/t3421-rebase-topology-linear.sh
+++ b/t/t3421-rebase-topology-linear.sh
@@ -217,6 +217,7 @@ test_run_rebase success ''
 test_run_rebase success -m
 test_run_rebase success -i
 test_run_rebase failure -p
+test_run_rebase success --rebase-merges
 
 #       m
 #      /
@@ -327,9 +328,9 @@ test_run_rebase () {
                test_cmp_rev c HEAD
        "
 }
-test_run_rebase failure ''
-test_run_rebase failure -m
-test_run_rebase failure -i
+test_run_rebase success ''
+test_run_rebase success -m
+test_run_rebase success -i
 test_run_rebase failure -p
 
 test_run_rebase () {