Added html attribute to XsltTask

[siad007]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@84843d9). Click here to learn what that means.
The diff coverage is 33.33%.

@@            Coverage Diff            @@
##             master     #907   +/-   ##
=========================================
  Coverage          ?   45.18%           
  Complexity        ?     9841           
=========================================
  Files             ?      499           
  Lines             ?    23870           
  Branches          ?        0           
=========================================
  Hits              ?    10786           
  Misses            ?    13084           
  Partials          ?        0

Impacted Files	Coverage Δ	Complexity Δ
classes/phing/tasks/system/XsltTask.php	57.14% <33.33%> (ø)	7 <1> (?)

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