/var/tmp/portage/media-sound/pulseaudio-0.9.21/temp/environment: line 2840: !built_with_use: command not found Space missing between ! and built_with_use in pkg_postinst()
Thanks for reporting this typo. Looks like it appears also in pulseaudio-0.9.19, which is actually being stabled.
Thanks, fixed now. It was nothing major since it's just used to output a warning to users merging.