Fixed KarmaTestRunner no longer being silent. When the second parameter of `fork` is not an Array, the second parameter will be used as the options object, while our options object is the third parameter. This change caused the KarmaTestRunner to no longer be silent.
Fixed KarmaTestRunner no longer being silent. When the second parameter of `fork` is not an Array, the second parameter will be used as the options object, while our options object is the third parameter. This change caused the KarmaTestRunner to no longer be silent.

jeznag/stryker,stryker-mutator/stryker,jeznag/stryker,stryker-mutator/stryker,stryker-mutator/stryker