Created attachment 399706 [details] btrfs-progs 3.19 bash-completion support ebuild btrfs-progs 3.19 includes bash-completion script. So I edited ebuild for support it.
+*btrfs-progs-3.19.1 (26 Mar 2015) + + 26 Mar 2015; Mike Gilbert <floppym@gentoo.org> +btrfs-progs-3.19.1.ebuild, + btrfs-progs-9999.ebuild: + Version bump, bug 544602. Install bash completion file, bug 544414.