all: add optional shorthand to flags

General MR

Summary

Allows setting an optional "shorthand" command to all command line flags. E.g. -A will alias --all-namespaces.

Relevant logs/screenshots

Temporarily added an -a to audit and tested:

+++ b/cmd/violations.go
@@ -145,7 +145,7 @@ func NewViolationsCmd(factory bbUtil.Factory) (*cobra.Command, error) {
 
        flagError := configClient.SetAndBindFlag(
                "audit",
-               "",
+               "a",
                false,
                "list violations in audit mode",
        )

Flags:
  -a, --audit   list violations in audit mode
  -h, --help    help for violations

Linked Issue

Wanted for #196 (closed)

Upgrade Notices

N/A