ports/opt (3.1): [notify] prt-utils: update to 1.0

[notify] prt-utils: update to 1.0 prt-utils includes a much faster version of revdep now, written in the C language by James Buren, ryuo @ freenode. Many thanks for the contribution! Note: ----- revdep requires opt/elfutils at build-time, please install this new dependency.