tree ecf265a5e206f71058e114d3a575e24a1ce5f9da
parent 631dfbb8ad2edd23e008c820f499152ac0d16caa
author Elliott Hughes <enh@google.com> 1695346359 -0700
committer Elliott Hughes <enh@google.com> 1695838872 -0700

Add strerrordesc_np() and strerrorname_np().

strerrordesc_np() isn't very useful (being just another name for
strerror()), but strerrorname_np() lets you get "ENOSYS" for ENOSYS,
which will make some of our test assertion messages clearer when we
switch over from strerror().

This also adds `%#m` formatting to all the relevant functions.

Test: treehugger
Change-Id: Icfe07a39a307d591c3f4f2a09d008dc021643062