REGTEST: http-rules: test spaces in ACLs with master CLI

Do the tests for spaces on the CLI with the master CLI.

Could be backported as far as 2.0 once the required patches are applied.
diff --git a/reg-tests/http-rules/acl_cli_spaces.vtc b/reg-tests/http-rules/acl_cli_spaces.vtc
index fcae0c4..e67f7ce 100644
--- a/reg-tests/http-rules/acl_cli_spaces.vtc
+++ b/reg-tests/http-rules/acl_cli_spaces.vtc
@@ -1,7 +1,7 @@
-varnishtest "haproxy ACL, CLI and spaces"
+varnishtest "haproxy ACL, CLI and mCLI spaces"
 feature ignore_unknown_macro
 
-#REQUIRE_VERSION=1.6
+#REQUIRE_VERSION=2.0
 
 server s1 {
    rxreq
@@ -9,7 +9,7 @@
    txresp
 } -repeat 2 -start
 
-haproxy h1 -conf {
+haproxy h1 -W -S -conf {
   defaults
     mode http
     ${no-htx} option http-use-htx
@@ -50,3 +50,31 @@
     rxresp
     expect resp.status == 403
 } -run
+
+
+haproxy h1 -cli {
+  send "del acl ${testdir}/agents.acl Mon\\ User\\ Agent\\;"
+  expect ~ .*
+
+  send "show acl ${testdir}/agents.acl"
+  expect ~ .*
+}
+
+client c1 -connect ${h1_fe1_sock} {
+    txreq -hdr "User-Agent: Mon User Agent;"
+    rxresp
+    expect resp.status == 200
+} -run
+
+
+# Try it with the master CLI
+haproxy h1 -mcli {
+  send "@1 add acl ${testdir}/agents.acl Mon\\ User\\ Agent\\;;@1 show acl ${testdir}/agents.acl"
+  expect ~ ".*Mon User Agent;.*"
+}
+
+client c1 -connect ${h1_fe1_sock} {
+    txreq -hdr "User-Agent: Mon User Agent;"
+    rxresp
+    expect resp.status == 403
+} -run