sysutils/duplicity: Update to 0.7.13.1
Changed RUN_DEPENDS from devel/py-lockfile to devel/py-fasteners:
Fixed bug #1320641 and others regarding lockfile - swap from lockfile to fasteners module - use an fcntl() style lock for process lock of duplicity cache - lockfile will now clear if duplicity is killed or crashes
See the changelog file for more information.
Changes: http://www.nongnu.org/duplicity/CHANGELOG
Approved by: garga (mentor)
Differential Revision: https://reviews.freebsd.org/D11548