D-Programming-Language/phobos — pull request #1418 by ntrel (2013-07-17 12:10:18+00:00)
Title: Fix Issue 10662 - byLine!(Char, immutable Char) won't compile

This wouldn't compile because `readln(buf)` now requires a mutable `buf`.
Also make `ByLine.line`, `ByLine.first_call` private.