Errno

[caguero]

Use errno to show additional error information.

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge

[codecov]

Codecov Report

Merging #254 (5b6dbff) into ign-transport9 (b58e30c) will decrease coverage by 0.07%.
The diff coverage is 30.00%.

❗ Current head 5b6dbff differs from pull request most recent head 96ce3c0. Consider uploading reports for the commit 96ce3c0 to get more accurate results

@@                Coverage Diff                 @@
##           ign-transport9     #254      +/-   ##
==================================================
- Coverage           88.98%   88.91%   -0.08%     
==================================================
  Files                  49       49              
  Lines                4668     4674       +6     
==================================================
+ Hits                 4154     4156       +2     
- Misses                514      518       +4     

Impacted Files	Coverage Δ
include/ignition/transport/Discovery.hh	87.06% <30.00%> (-0.68%)	⬇️

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[ahcorde]

DCO ?

[chapulina]

DCO ?

The DCO checker doesn't act well when the PR is targeted at the wrong branch and then updated. It looks like it's a false-negative to me.

[nkoenig]

@caguero we are clear to get this in and make a release.