Update to vim-9.1.0405.
Update to util-linux-2.40.1.
Update to linux-6.8.9.
Update to jinja2-3.1.4 (Python mpdule).
Update to iana-etc-20240502.
Update to gcc-14.1.0.
We used to run "expect -c 'spawn ls'" for this in Binutils, but then we
thought expect test suite was enough as such a simple PTY test. However
expect test can fail due to some different reason, so add back a simple
test using Python pty module before building expect. Now we no longer
need to consider expect test critical (IIRC there was a report saying
one expect test failed for unknown reason but all other things OK).
Use <quote> instead of '"' if possible. Use <literal>,
<computeroutput>, etc. instead of <quote> if possible. Replace
<quote>alpha</quote> with a UTF-8 Greek alpha character.
BTW decorate ".link" with <filename class='extension'>.
1. Declare UNIX98 PTY requirement in host system requirements and check
it in the script. All desktop or server distros should have it now,
but let's stop anyone from building on a embedded distro w/o UNIX98
PTY early...
2. Use Expect test suite as a guard against mishandled $LFS/dev/pts.
3. No need to test the basic function of Expect in Binutils anymore
because if ($LFS)/dev/pts is not good, the Expect test suite would
have failed.
