D-Programming-Language/phobos — pull request #2499 by CyberShadow (2014-09-08 21:57:43+00:00)
Title: fix Issue 13441 - joiner asserts with only(x) separator

This patch could use review. Is there a better way to do this? Can we expect `_currentSep.init.empty` to be a valid expression that can be evaluated at compile-time?

Ping @quickfur