cli: fix builder persistent flag

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

util/cobrautil/cobrautil.go

@@ -0,0 +1,14 @@
+package cobrautil
+
+import "github.com/spf13/cobra"
+
+// HideInheritedFlags hides inherited flags
+func HideInheritedFlags(cmd *cobra.Command, hidden ...string) {
+	for _, h := range hidden {
+		// we could use cmd.SetHelpFunc to override the helper
+		// but, it's not enough because we also want the generated
+		// docs to be updated, so we override the flag instead
+		cmd.Flags().String(h, "", "")
+		_ = cmd.Flags().MarkHidden(h)
+	}
+}