AddBothBoolFlags adds the given flag in both `--foo` and `--no-foo` variants.

AddBothBoolFlagsUnhidden is just like AddBothBoolFlags but shows both flags.

FirstCharToLower converts first char in given string to lowercase.

InvertUsage inverts the usage string with prefix "Do not".

MakePersistentPreRunE returns a PersistentPreRunE function.

NewQuickFixLogFactory creates an instance of LogFactory that writes messages and events to stdout.

ReconcileBoolFlags sets the value of the all the "--foo" flags based on "--no-foo" if provided, and returns an error if both were provided or an explicit value of false was provided to either (as that's confusing).

ValidateRequiredFlags is a public version of cobra's Command.validateRequiredFlags().