tests: test-mq-subrepo.t Solaris 10 sh compliance Solaris 10 sh do apparently not like temporary environment variable assignment before a function call. There is no problem with commands.

bash_completion: complete bookmarks Since bookmarks moved into core and are no longer merged with the list of tags (d012d95499f7), they don't get completed in bash_completion along with other revision specifiers. This adds a new function to provide the list of bookmarks for completion, and another, _hg_labels(), to list all tags, branches, and bookmarks. It further modifies completion for all commands where '_hg_tags; _hg_branches' was used to use '_hg_labels' instead.