Update output for bundle-list --orphans

Add informational line for how to cleanup orphan bundles to
bundle-list --orphans.

Signed-off-by: William Douglas <william.douglas@intel.com>

Author: William Douglas

src/cmds/bundle_list.c

@@ -560,6 +560,7 @@ enum swupd_code bundle_list_main(int argc, char **argv)
 	ret = list_bundles();
 	if (ret == SWUPD_OK && cmdline_option_orphans) {
 		info("\nUse \"swupd bundle-add BUNDLE\" to no longer list BUNDLE and its dependencies as orphaned\n");
+		info("\nUse \"swupd bundle-remove --orphans\" to delete all orphaned bundles\n");
 	}
 
 	swupd_deinit();

test/functional/bundlelist/list-orphans.bats

@@ -41,6 +41,7 @@ teardown_file() {
 		 - test-bundle6
 		Total: 2
 		Use "swupd bundle-add BUNDLE" to no longer list BUNDLE and its dependencies as orphaned
+		Use "swupd bundle-remove --orphans" to delete all orphaned bundles
 	EOM
 	)
 	assert_is_output "$expected_output"
@@ -61,6 +62,7 @@ teardown_file() {
 		 - test-bundle6 (installed)
 		Total: 2
 		Use "swupd bundle-add BUNDLE" to no longer list BUNDLE and its dependencies as orphaned
+		Use "swupd bundle-remove --orphans" to delete all orphaned bundles
 	EOM
 	)
 	assert_is_output "$expected_output"
@@ -107,6 +109,7 @@ teardown_file() {
 		 - test-bundle6
 		Total: 3
 		Use "swupd bundle-add BUNDLE" to no longer list BUNDLE and its dependencies as orphaned
+		Use "swupd bundle-remove --orphans" to delete all orphaned bundles
 	EOM
 	)
 	assert_is_output "$expected_output"