[Libguestfs] [PATCH 1/1] guestfish: Tab-complete single / double quoted filenames containing space -- add fish_completion_word_break_characters_hook

This patch introduces fish_completion_word_break_characters_hook - Readline's rl_completion_word_break_hook for guestfish so tab-completion on / for single / double quoted filenames containing space would be possible too - this covers part: "In addition: doesn't show any files to complete." from RH BZ#547488. Thank you, Jan. -- Jan iankko Lieskovsky P.S.: Feel free to remove the comment lines, if you find them unnecessary. P.S.#2: Have got a patch for completion of unquoted filenames containing space too already, but need to give it further testing => will submit in separated post later.