message: Make sure flag_group.flags is non-empty
diff: @@ -497,12 +497,11 @@ def _features(cpu, compiler, ctx):
  ),
  flag_set(
  actions = all_link_actions(),
  - flag_groups = [
  - flag_group(flags = (
  - ["-Wl,-no-as-needed"] if cpu == "local" else []
  - ) + (
  - ["-B" + ctx.attr.linker_bin_path] if ctx.attr.linker_bin_path else []
  - ),
  + flag_groups = ([
  + flag_group(flags = ["-Wl,-no-as-needed"])
  + ] if cpu == "local" else []) + ([
  + flag_group(flags = ["-B" + ctx.attr.linker_bin_path])
  + ] if ctx.attr.linker_bin_path" else []) + [
  flag_group(
  flags = ["@%{linker_param_file}"],
  expand_if_available = "linker_param_file",
  