Minor bugfix: ec2 driver create_node ex_userdata broken in tag 2.8

[Chaffelson]

Minor bugfix: ec2 driver create_node ex_userdata broken in tag 2.8

Description

Release tag 2.8 reworked the kwargs based implementation of the ec2 driver, introducing this error where the literal string 'ex_userdata' was passed during create_node intead of the actual ex_userdata kwarg

Status

done, ready for review

Checklist (tick everything that applies)

• Code linting (required, can be done after the PR checks)
• Documentation
• Tests
• ICLA (required for bigger changes)

Packaged tests are broken, tested manually using 3.0.0rc1
No change to documentation
No material change to code linting status

[codecov-io]

Codecov Report

Merging #1426 into trunk will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##            trunk    #1426   +/-   ##
=======================================
  Coverage   86.08%   86.08%           
=======================================
  Files         370      370           
  Lines       77495    77495           
  Branches     7655     7655           
=======================================
  Hits        66710    66710           
  Misses       7885     7885           
  Partials     2900     2900

Impacted Files	Coverage Δ
libcloud/compute/drivers/ec2.py	75.27% <0%> (ø)	⬆️

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[Kami]

Thanks and a good catch.

That was a bad bug :/

We also need to make sure we have some tests for this scenario to avoid such regressions in the future.

[Kami]

I've added a test case (5593d6c) and merged it into trunk.

Thanks for contribution.