https://issues.dlang.org/show_bug.cgi?id=10001
--- Comment #4 from github-bugzi...@puremagic.com --- Commit pushed to master at https://github.com/dlang/phobos https://github.com/dlang/phobos/commit/5de9af20ad07ebe485394309867073baa53b627b Merge pull request #5303 from burner/origin/formatunderscore fix Issue 10001 - std.format insert underscores into numbers merged-on-behalf-of: unknown --