tests: don't hardcode errno==2 for ENOENT
Hurd seems to set ENOENT to 2 + 2**30, unlike everyone else.
osutil: write a C implementation of statfiles for unix
This makes a big difference to performance.
In a clean working directory containing 170,000 files, performance of
"hg --time diff" improves from 2.38 seconds to 1.69.
i18n-ja: synchronized with
f94ead934067
Added signature for changeset
0c10cf819146
Added tag 2.4.1 for changeset
0c10cf819146