starting comment with function name will much easier run `godoc` with `grep` command.

    $ godoc regexp | grep parse

"If all the doc comments in the package began, "This function...", `grep` wouldn't help you remember the name. But because the package starts each doc comment with the name, you'd see something like this, which recalls the word you're looking for."

Effective Go - http://golang.org/doc/effective_go.html#commentary