Fix the problem with etcd check.

Change-Id: I04d65fa9b50c35f4d24d5b9ecc6b0c7d68d9891a
diff --git a/src/com/mirantis/mk/Orchestrate.groovy b/src/com/mirantis/mk/Orchestrate.groovy
index 6185dd4..feb0c8d 100644
--- a/src/com/mirantis/mk/Orchestrate.groovy
+++ b/src/com/mirantis/mk/Orchestrate.groovy
@@ -148,7 +148,7 @@
     // Install etcd
     if (salt.testTarget(master, 'I@etcd:server')) {
         salt.enforceState(master, 'I@etcd:server', 'etcd.server.service')
-        salt.cmdRun(master, 'I@etcd:server', 'bash -c "source /var/lib/etcd/configenv && etcdctl cluster-health"')
+        salt.cmdRun(master, 'I@etcd:server', '. /var/lib/etcd/configenv && etcdctl cluster-health')
     }
 }