remove accidental duplicate, initialize WorkingDir for puppet-server

provisioner/puppet-masterless/provisioner.go

@@ -170,10 +170,6 @@ func (p *Provisioner) Prepare(raws ...interface{}) error {
 		p.config.ExecuteCommand = p.guestOSTypeConfig.executeCommand
 	}
 
-	if p.config.ExecuteCommand == "" {
-		p.config.ExecuteCommand = p.guestOSTypeConfig.executeCommand
-	}
-
 	if p.config.StagingDir == "" {
 		p.config.StagingDir = p.guestOSTypeConfig.stagingDir
 	}

provisioner/puppet-server/provisioner.go

@@ -165,6 +165,10 @@ func (p *Provisioner) Prepare(raws ...interface{}) error {
 		p.config.StagingDir = p.guestOSTypeConfig.stagingDir
 	}
 
+	if p.config.WorkingDir == "" {
+		p.config.WorkingDir = p.config.StagingDir
+	}
+
 	if p.config.Facter == nil {
 		p.config.Facter = make(map[string]string)
 	}