0.15.1 - Format Methods No Longer Have Format Strings or Options

[theMagicalKarp]

What

As part of the transition to zig 0.15.1, the language changed the function signature for format.

https://ziglang.org/download/0.15.1/release-notes.html#Format-Methods-No-Longer-Have-Format-Strings-or-Options

pub fn format(
    this: @This(),
    comptime format_string: []const u8,
    options: std.fmt.FormatOptions,
    writer: anytype,
) !void { ... }

⬇️

pub fn format(this: @This(), writer: *std.Io.Writer) std.Io.Writer.Error!void { ... }