ibuilbo: fix fewfault action handling

The default action  was redundantly assigned twice to the action to be
run.

This change fixes it by reducing assignments to one.

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Michael Adam <obnox@samba.org>

Author: obnoxxx

cli/builbo

@@ -32,7 +32,6 @@ function detect_container_command() {
  ACTION="${DEFAULT_ACTION}"
  # action that was explicitly set from the command line:
  SELECTED_ACTION=""
- ACTION="${DEFAULT_ACTION}"
  # shell for interactive use:
  DEFAULT_I_SHELL="bash"
  I_SHELL="${DEFAULT_I_SHELL}"