Fixing galera.slave state

The patch fixes galera deployment state which skipped
galer:slave pillar therefore galera slaves nodes were
not deployed.

Change-Id: Ibe47cff44cc433b59563511c1fb45269739fdc80
diff --git a/src/com/mirantis/mk/Orchestrate.groovy b/src/com/mirantis/mk/Orchestrate.groovy
index c705ca9..d647a91 100644
--- a/src/com/mirantis/mk/Orchestrate.groovy
+++ b/src/com/mirantis/mk/Orchestrate.groovy
@@ -195,7 +195,7 @@
     // Install galera
     if (salt.testTarget(master, "I@galera:master ${extra_tgt}") || salt.testTarget(master, "I@galera:slave ${extra_tgt}")) {
         salt.enforceState(master, "I@galera:master ${extra_tgt}", 'galera', true, true, null, false, -1, 2)
-        salt.enforceStateWithTest(master, "I@galera:slave ${extra_tgt}", 'galera', true, true, null, false, -1, 2)
+        salt.enforceStateWithTest(master, "I@galera:slave ${extra_tgt}", 'galera', "", true, true, null, false, -1, 2)
 
         // Check galera status
         salt.runSaltProcessStep(master, "I@galera:master ${extra_tgt}", 'mysql.status')