improve bash-completion 'ros -l'
improve bash-completion 'ros -l'

roswell/roswell,snmsts/roswell,guicho271828/roswell,snmsts/roswell,roswell/roswell,roswell/roswell,roswell/roswell,guicho271828/roswell,snmsts/roswell,guicho271828/roswell,snmsts/roswell,guicho271828/roswell