[lcn2]

Updated Supported Versions in various SECURITY.md files.

Fixed a few comment typos, and string typos.

Improve a few NULL tests.

Fix undefined behavior in the defensive early-return paths of fpr() and
pr() by ensuring each va_start() is matched with a va_end() before
returning.

Correct pr_test -h so the usage text reports the libpr version instead of
the unrelated dyn_array version string.

Fix several pr/-local comment and documentation typos.

Improved jparse(3) man page to discuss when filename
is NULL, and stream is != NULL.

Added test for when JSON stream is NULL, and filename uses stream.

This update should have nil effect on use of this library
and the API remains identical to "release 3.3.0 2026-09-24".

Changed DBG_VERSION to "3.3.1 2026-09-27"
Changed CPATH_VERSION to "2.1.1 2026-09-27"
Changed PR_VERSION to "1.2.1 2026-09-27"
Changed JPARSE_REPO_VERSION to "2.6.1 2026-09-27"
Changed JPARSE_TOOL_VERSION to "2.1.1 2026-09-27"
Changed JPARSE_LIBRARY_VERSION to "2.5.1 2026-09-27"
Changed JPARSE_UTILS_VERSION to "2.2.1 2026-06-27"
Changed SOUP_VERSION to "2.4.4 2026-09-27"
Changed MKIOCCCENTRY_REPO_VERSION to "2.12.4 2026-09-27"

[Copilot]

Copilot review overview

🟢 Approval recommended

The only finding is a non-blocking changelog wording nit.

Review effort: Lite
Findings: None

What changed in this PR

Release 2.12.4 updates Soup metadata and corrects documentation, diagnostics, wording, and release notes.

Changes:

• Bumps SOUP_VERSION to 2.4.4.
• Fixes diagnostic formatting and wording.
• Corrects a README URL and updates CHANGES.md.

File	Summary
soup/​version.h	Updates Soup release version.
soup/​util.c	Corrects comments and debug messages.
soup/​file_util.c	Fixes snprintf return-value reporting.
README.md	Corrects the FAQ URL.
CHANGES.md	Documents release 2.12.4.

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