[Phing] Simplified os family condition

[siad007]

No description provided.

[codecov]

Codecov Report

Merging #1308 into master will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #1308      +/-   ##
============================================
- Coverage     51.61%   51.61%   -0.01%     
+ Complexity     9281     9279       -2     
============================================
  Files           477      477              
  Lines         22674    22667       -7     
============================================
- Hits          11704    11700       -4     
+ Misses        10970    10967       -3     

Impacted Files	Coverage Δ	Complexity Δ
classes/phing/Phing.php	36.29% <100.00%> (-0.22%)	232.00 <0.00> (-2.00)

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