Fixing issues with open.

[KevinPlus3]

py2's open uses name as key for parameter while py3 uses file. Both expect path to be in first position, so a potential easy fix to just remove the key name=.

Fixes issue #322

[codecov]

Codecov Report

Merging #323 into develop will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff            @@
##           develop     #323   +/-   ##
========================================
  Coverage    18.35%   18.35%           
========================================
  Files           13       13           
  Lines          828      828           
  Branches        94       94           
========================================
  Hits           152      152           
  Misses         676      676

Impacted Files	Coverage Δ
src/watchmaker/workers/yum.py	22.05% <0%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3d7dd84...1e9eeed. Read the comment docs.

[codecov]

Codecov Report

Merging #323 into develop will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff            @@
##           develop     #323   +/-   ##
========================================
  Coverage    18.35%   18.35%           
========================================
  Files           13       13           
  Lines          828      828           
  Branches        94       94           
========================================
  Hits           152      152           
  Misses         676      676

Impacted Files	Coverage Δ
src/watchmaker/workers/yum.py	22.05% <0%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3d7dd84...1e9eeed. Read the comment docs.

[lorengordon]