John Wang 869b17fe29 [Golang][client] delete sample output dir before rebuild (#477)
* delete Go client sample output dir before rebuild

* purge go-petstore-withXml samples output dir before build

* update samples

* fix go-petstore-withxml.sh echo path
2018-07-06 12:20:13 +08:00
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2016-04-28 21:43:14 -07:00