fix RealSourcesSpec hardcoded local paths

[xuwei-k]

• parboiled2/scalaParser/src/test/scala/scalaparser/RealSourcesSpec.scala

  Lines 17 to 25 in dc9f7b5

  	"akka" in checkDir("~/Documents/projects/Akka")
  	"shapeless" in checkDir("~/Documents/forks/shapeless")
  	"spray" in checkDir("~/Documents/projects/spray")
  	"scalaz" in checkDir("~/Documents/forks/scalaz")
  	"spire" in checkDir("~/Documents/forks/spire")

• parboiled2/scalaParser/src/test/scala/scalaparser/RealSourcesSpec.scala

  Line 75 in dc9f7b5

  fileName <- listFiles(new File(if (path startsWith "~") System.getProperty("user.home") + path.tail else path))