indent error flow
indent error flow

https://code.google.com/p/go-wiki/wiki/CodeReviewComments#Indent_Error_Flow

dgrijalva/jwt-go,sthapaun/jwt-go,nabeken/jwt-go,missmp/jwt-go,itsjamie/jwt-go,cosiner/zerver_jwt,agaurav/jwt-go,wangfakang/jwt-go,NicheInc/jwt-go,insionng/jwt-go,vektra/jwt-go,RangelReale/jwt