https://issues.dlang.org/show_bug.cgi?id=18689
--- Comment #1 from github-bugzi...@puremagic.com --- Commit pushed to master at https://github.com/dlang/phobos https://github.com/dlang/phobos/commit/e2d791bcf1c2a129ec988589b7cabc9c65721dde Fix Issue 18689 - std.format should throw FormatException on bad format spec --