batmand, vis: drop dead build flags, fix revision info, add test-version.sh - #1195

Checking PR #1195: batmand, vis: drop dead build flags, fix revision info, add test-version.sh (Formalities Audit)

✅ Pull request originates from a dedicated feature branch (batmand-vis-cleanup)

Commit 6181c7d - batmand: clean up Makefile and add test-version.sh:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "batmand: clean up Makefile and add test-version.sh"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
✅ Excellent! Commit contains a valid cryptographic signature (GPG/SSH). Thank you for signing your work! (Verified via GitHub Profile)
⚠️ Warning: No reference link (e.g., upstream release notes, changelog, or history URL) detected in description.
⚠️ Commit to stable branch bypasses cherry-pick requirement via override command

Commit b37984b - vis: fix revision info in binary and add test-version.sh:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "vis: fix revision info in binary and add test-version.sh"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
✅ Excellent! Commit contains a valid cryptographic signature (GPG/SSH). Thank you for signing your work! (Verified via GitHub Profile)
⚠️ Warning: No reference link (e.g., upstream release notes, changelog, or history URL) detected in description.
⚠️ Commit to stable branch bypasses cherry-pick requirement via override command

Commit 103bc5f - batmand: fix build with GCC 14:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "batmand: fix build with GCC 14"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
✅ Excellent! Commit contains a valid cryptographic signature (GPG/SSH). Thank you for signing your work! (Verified via GitHub Profile)
⚠️ Warning: No reference link (e.g., upstream release notes, changelog, or history URL) detected in description.
⚠️ Commit to stable branch bypasses cherry-pick requirement via override command