zig fmt help: mention that the argument can be a directory
I’ve been typing `zig fmt **/.zig` for a long time, until I discovered
that the argument can actually be a directory.
Mention this feature explicitly in the help message.
19943f0f21Frank Denis committed on 9/18/2025, 8:15:57 PM· committed by Alex Rønne Petersenparentd6b4e19