support zero-sized structs in zig.fmt.format
support zero-sized structs in zig.fmt.format

andrewrk/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig