[PhingCallTask] set target on callee

[siad007]

Added missing setTarget call on the callee.
Related to #1241

[codecov]

Codecov Report

Merging #1243 into master will increase coverage by <.01%.
The diff coverage is 80%.

@@             Coverage Diff              @@
##             master    #1243      +/-   ##
============================================
+ Coverage     49.29%   49.29%   +<.01%     
- Complexity     9690     9691       +1     
============================================
  Files           493      493              
  Lines         23738    23741       +3     
============================================
+ Hits          11701    11703       +2     
- Misses        12037    12038       +1

Impacted Files	Coverage Δ	Complexity Δ
classes/phing/tasks/system/PhingCallTask.php	73.8% <80%> (-0.55%)	15 <2> (+1)

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