lib/std/fmt.zig       |  57 ++++++-------
 lib/std/io/Reader.zig | 146 +++++++++++++++++++++++---------
 lib/std/io/Writer.zig |  60 +++++++------
 lib/std/net/test.zig  |  42 ++-------
 4 files changed, 177 insertions(+), 128 deletions(-)