fixes run/macroPlugins-namerHooks.scala
fixes run/macroPlugins-namerHooks.scala

Makes run/macroPlugins-namerHooks.scala work equally well on both
Unix and Windows machines.

scala/scala,jvican/scala,lrytz/scala,felixmulder/scala,felixmulder/scala,jvican/scala,lrytz/scala,shimib/scala,scala/scala,martijnhoekstra/scala,felixmulder/scala,scala/scala,slothspot/scala,slothspot/scala,scala/scala,slothspot/scala,martijnhoekstra/scala,felixmulder/scala,slothspot/scala,shimib/scala,jvican/scala,shimib/scala,martijnhoekstra/scala,jvican/scala,lrytz/scala,shimib/scala,scala/scala,shimib/scala,lrytz/scala,jvican/scala,felixmulder/scala,slothspot/scala,martijnhoekstra/scala,jvican/scala,shimib/scala,lrytz/scala,martijnhoekstra/scala,slothspot/scala,slothspot/scala,jvican/scala,felixmulder/scala,lrytz/scala,scala/scala,martijnhoekstra/scala,felixmulder/scala