fix: restore the trailing newline

The previous commit on this branch was written by a script that read the file
through a shell command substitution. $(...) strips trailing newlines and
printf '%s' does not put one back, so the file lost its final newline and the
diff showed "\ No newline at end of file".

Content is otherwise byte-identical to that commit.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: hyperpolymath

.machine_readable/bot_directives/methodology.a2ml

@@ -104,4 +104,4 @@ constraints = [
 reject-if-contains = ["{{PLACEHOLDER}}", "{{PROJECT}}", "rsr-template-repo"]
 reject-if-project-name-mismatch = true
 staleness-threshold-days = 90
-fallback-files = ["TODO.md", "TODO.adoc", "ROADMAP.adoc", "README.adoc"]
+fallback-files = ["TODO.md", "TODO.adoc", "ROADMAP.adoc", "README.adoc"]