GNU sed's N auto-prints the pattern space and exits at end of input, so the
`:a;N;$!ba` slurp skipped every following s/// for a value with no newline in
it. That is every value except the injection attempt the escaping exists to
stop, so the Exec quoting's own backslashes were written to the file unescaped
and GLib refused to load the entry.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Codex GPT-5.6-sol (xhigh) <noreply@openai.com>
