security/stunnel: Update to 5.24

[brnrd]

Summary

Proposed commit-log:

security/stunnel: Update to 5.24

  - Supports building without EGD
  - Order options alphabetical

Test Plan

• testport (poudriere OK)
• portlint -AC (no change)

WARN: Makefile: [81]: use ${VARIABLE}, instead of $(VARIABLE).
WARN: Makefile: PTHREAD is listed in OPTIONS_DEFINE, but no PORT_OPTIONS:MPTHREAD appears.
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
0 fatal errors and 3 warnings found.

[koobs]

1. Update revision Summary to:
   • Separate out proposed "commit message" using "code block" syntax
2. Add to proposed commit message:
   • Add Differential Revision: entry
   • Add Approved by: entry
3. Has this change been submitted upstream? If so:
   • Include references in your commit message entries. For example:

 - Use OPENSSL_NO_EGD define to disable RAND_egd. Submit upstream [1]

[1] https://github.com/account/project/issue/113

[brnrd]

Update port to 5.24

• Patch to build without EGD included in this release