Try to handle errors first so the happy path is clear

#11 opened 9 years ago by renannprado

4

Use defer if its overhead is relatively negligible, or it buys meaningful readabilityAccepted

#6 opened 9 years ago by dmitshur

4

Don't os.Exit(2) inside flag.UsageAccepted

#1 opened 9 years ago by dmitshur

6