Backport #1996 to release-2020.06

[ryanjulian]

No description provided.

[codecov]

Codecov Report

Merging #2000 into release-2020.06 will decrease coverage by 0.05%.
The diff coverage is n/a.

@@                 Coverage Diff                 @@
##           release-2020.06    #2000      +/-   ##
===================================================
- Coverage            90.70%   90.64%   -0.06%     
===================================================
  Files                  213      213              
  Lines                11208    11208              
  Branches              1346     1346              
===================================================
- Hits                 10166    10160       -6     
- Misses                 789      793       +4     
- Partials               253      255       +2     

Impacted Files	Coverage Δ
...e/np/exploration_policies/epsilon_greedy_policy.py	96.42% <0.00%> (-3.58%)	⬇️
src/garage/plotter/plotter.py	63.63% <0.00%> (-3.41%)	⬇️
src/garage/misc/tensor_utils.py	86.84% <0.00%> (-1.76%)	⬇️

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