treewide: use eof and close to detect readline errors

readline (<FH>) isn't wrapped by autodie, and there's no
way to know if read(2) errors truncated the readline output.
IO::Handle->error isn't reliable on Perl < v5.34.

Thus, combining the `eof' and `close' (combined with autodie) is
the only way we can detect read(2) errors (injected via strace)
when called via `readline' (aka <$fh>).  Neither using `eof'
nor `close' alone is sufficient, they must be combined to detect
errors from buffered `readline'.

0 files changed, 0 insertions, 0 deletions