https://play.golang.org/p/Ido4pfGMpHn
の
if s=="a" {
return a()
} else {
return b()
}
の else 文で
if block ends with a return statement, so drop this else and outdent its block (move short variable declaration to its own line if necessary)
と go-lint が吐き出すんだけど、どう書けばいい？