Merge branch 'pb/branch-advice-recurse-submodules'

Improve advice message given when "git branch --recurse-submodules"
fails.

* pb/branch-advice-recurse-submodules:
  branch: improve advice when --recurse-submodules fails

Author: gitster

branch.c

@@ -756,7 +756,7 @@ void create_branches_recursively(struct repository *r, const char *name,
 				_("submodule '%s': unable to find submodule"),
 				submodule_entry_list.entries[i].submodule->name);
 			if (advice_enabled(ADVICE_SUBMODULES_NOT_UPDATED))
-				advise(_("You may try updating the submodules using 'git checkout %s && git submodule update --init'"),
+				advise(_("You may try updating the submodules using 'git checkout --no-recurse-submodules %s && git submodule update --init'"),
 				       start_commitish);
 			exit(code);
 		}