Very small patch, however a while ago I was playing with fetch and I wanted to output to stdout, and for whatever reason I couldn't get it to work. Today I embarrassed myself as someone pointed out the obvious answer.
The man page already contains a line under the -o option specifying "-" can be used to output to stdout, however there is no example of it. I feel like an example could help idiot-proof the man page for people like me :p
Honestly, I didn't know what to use as an example, so I followed the rest of the examples fetching the README from FreeBSD, and then searching for references to "ports", should be a good enough example to be adapted for anyone using fetch(1) in a script?