Maybe make makesum to generate new distinfo.
Code:
root@elfreebsdo1:~/xlibre/xlibre-ports/x11-servers/xlibre-server # make makesum
===> License MIT accepted by the user
===> License MIT accepted by the user
===> xlibre-server- depends on file: /usr/local/sbin/pkg - found
=> X11Libre-xserver--01a66863_GH0.tar.gz doesn't seem to exist in /usr/ports/distfiles/xlibre/server.
=> Attempting to fetch https://codeload.github.com/X11Libre/xserver/tar.gz/01a66863?dummy=/X11Libre-xserver--01a66863_GH0.tar.gz
fetch: https://codeload.github.com/X11Libre/xserver/tar.gz/01a66863?dummy=/X11Libre-xserver--01a66863_GH0.tar.gz: Not Found
=> Attempting to fetch http://distcache.FreeBSD.org/ports-distfiles/xlibre/server/X11Libre-xserver--01a66863_GH0.tar.gz
fetch: http://distcache.FreeBSD.org/ports-distfiles/xlibre/server/X11Libre-xserver--01a66863_GH0.tar.gz: Not Found
=> Couldn't fetch it - please try to retrieve this
=> port manually into /usr/ports/distfiles/xlibre/server and try again.
*** Error code 1
Stop.
make[1]: stopped in /root/xlibre/xlibre-ports/x11-servers/xlibre-server
*** Error code 1
Stop.
make: stopped in /root/xlibre/xlibre-ports/x11-servers/xlibre-server
root@elfreebsdo1:~/xlibre/xlibre-ports/x11-servers/xlibre-server #