Pull in upstream changes to curlExec()

[jacobembree]

ServicesWebTestCase::curlExec() is missing the changes made upstream to DrupalWebTestCase::curlExec().
See https://www.drupal.org/node/889338.

[signalpoint]

@jacobembree Thanks. Should this land as a patch on d.o instead of over here on GitHub? Don't get me wrong, I love pull requests and think they're way easier to deal with, it's just away from the typical Drupal protocol (until they are running full blown GitLab).

[jacobembree]

Either way works for me. The project page says to use GitHub, but different people probably monitor different places.
The Drupal.org issue for this is #3027087.

[jacobembree]

Thanks for committing this at Drupal.org, @signalpoint. I'm closing this pull request since Drupal.org is where development is happening.
See https://www.drupal.org/project/services/issues/3027094 where I recommend removing mention of this repository.

[signalpoint]

Thank you @jacobembree , I hadn't noticed the mention of preferred development over here. I believe it's mostly for the D8 version which Kyle maintains. I cleared up the verbiage on the d.o project page to clarify D8 is over here and D7 is over there.