Have core commands have consistent Short description

pkg/cmd/auth/auth.go

@@ -14,8 +14,11 @@ import (
 func NewCmdAuth(f *cmdutil.Factory) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "auth <command>",
-		Short: "Login, logout, and refresh your authentication",
+		Short: "Authenticate gh with GitHub",
 		Long:  `Manage gh's authentication state.`,
+		Annotations: map[string]string{
+			"IsCore": "true",
+		},
 	}
 
 	cmdutil.DisableAuthCheck(cmd)

pkg/cmd/release/release.go

@@ -15,7 +15,7 @@ import (
 func NewCmdRelease(f *cmdutil.Factory) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "release <command>",
-		Short: "Manage GitHub releases",
+		Short: "Manage releases",
 		Annotations: map[string]string{
 			"IsCore": "true",
 		},

pkg/cmd/repo/repo.go

@@ -22,7 +22,7 @@ import (
 func NewCmdRepo(f *cmdutil.Factory) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "repo <command>",
-		Short: "Create, clone, fork, and view repositories",
+		Short: "Manage repositories",
 		Long:  `Work with GitHub repositories.`,
 		Example: heredoc.Doc(`
 			$ gh repo create