Fix divide by zero

[robiningelbrecht]

No description provided.

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (611de4b) 100.00% compared to head (e9afe5d) 100.00%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##              master        #3   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity        80        81    +1     
===========================================
  Files              7         7           
  Lines            258       261    +3     
===========================================
+ Hits             258       261    +3     

Files Changed	Coverage Δ
src/MinCoverage/CoverageMetric.php	100.00% <100.00%> (ø)
src/PhpUnitExtension.php	100.00% <100.00%> (ø)
...iber/Application/ApplicationFinishedSubscriber.php	100.00% <100.00%> (ø)

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