fix dockerscan panic and a typo in usage

Author: dortam888

plugins/components/conversionlayer.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/jfrog/gofrog/datastructures"
 	"github.com/jfrog/jfrog-cli-core/v2/docs/common"
-	"github.com/jfrog/jfrog-cli-core/v2/utils/coreutils"
 	"github.com/jfrog/jfrog-client-go/utils/errorutils"
 	"github.com/urfave/cli"
 )
@@ -80,7 +79,8 @@ func convertCommand(cmd Command, namespaces ...string) (cli.Command, error) {
 	if err != nil {
 		return cli.Command{}, err
 	}
-	return cli.Command{
+
+	cliCmd := cli.Command{
 		Name:            cmd.Name,
 		Flags:           convertedFlags,
 		Aliases:         cmd.Aliases,
@@ -93,9 +93,14 @@ func convertCommand(cmd Command, namespaces ...string) (cli.Command, error) {
 		BashComplete:    common.CreateBashCompletionFunc(),
 		SkipFlagParsing: cmd.SkipFlagParsing,
 		Hidden:          cmd.Hidden,
+	}
+
+	if cmd.Action != nil {
 		// Passing any other interface than 'cli.ActionFunc' will fail the command.
-		Action: getActionFunc(cmd),
-	}, nil
+		cliCmd.Action = getActionFunc(cmd)
+	}
+
+	return cliCmd, nil
 }
 
 func removeEmptyValues(slice []string) []string {
@@ -112,8 +117,8 @@ func removeEmptyValues(slice []string) []string {
 func createCommandUsages(cmd Command, convertedStringFlags map[string]StringFlag, namespaces ...string) (usages []string, err error) {
 	// Handle manual usages provided.
 	if cmd.UsageOptions != nil {
-		for _, manualUsage := range cmd.UsageOptions.Usage {
-			usages = append(usages, fmt.Sprintf("%s %s", coreutils.GetCliExecutableName(), manualUsage))
+		if cmd.UsageOptions.Usage != nil {
+			usages = append(usages, cmd.UsageOptions.Usage...)
 		}
 		if cmd.UsageOptions.ReplaceAutoGeneratedUsage {
 			return