add ~riscv keyword
tatt report: USE tests started on Fri Mar 10 02:02:44 CST 2023 FEATURES=' test' USE='' succeeded for =dev-vcs/gitg-41-r1 USE='-glade -python' succeeded for =dev-vcs/gitg-41-r1 USE='glade -python' succeeded for =dev-vcs/gitg-41-r1
Normally the maintainers add CC-ARCHES to they confirm everything is ok; I will remove it for now.