I wrote more about this on help-guix@ https://lists.gnu.org/archive/html/help-guix/2019-06/msg00024.html
- bug#36074: Incorrect quoting of GUIX_LOCPATH environment ... Jack Hill
- bug#36074: Incorrect quoting of GUIX_LOCPATH environ... Jack Hill
- bug#36074: [PATCH] etc: guix-daemon.service.in: fix ... Jack Hill
- bug#36074: Incorrect quoting of GUIX_LOCPATH environ... Ricardo Wurmus
- bug#36074: Incorrect quoting of GUIX_LOCPATH environ... Ludovic Courtès
- bug#36074: Still got the issue in Xubuntu 18.4 Andréas Livet
- bug#36074: Incorrect quoting of GUIX_LOCPATH environ... Andréas Livet
- bug#36074: Incorrect quoting of GUIX_LOCPATH environ... David Loyall
- bug#36074: Incorrect quoting of GUIX_LOCPATH environ... Andréas Livet
- bug#36074: Incorrect quoting of GUIX_LOCPATH env... Andreas Enge