QA: redirect command output to test output file

tests/suites/remote-nextcloud.sh

@@ -28,7 +28,7 @@
 #
 
 is_configured() {
-    . /etc/mailinabox_mods.conf
+    . /etc/mailinabox_mods.conf 2>>$TEST_OF
     if [ $? -ne 0 -o -z "$NC_HOST" ]; then
         return 1
     fi
@@ -211,7 +211,3 @@ test_web_config
 test_nextcloud_contacts
 
 suite_end mgmt_end
-
-
-
-