Cull extraneous whitespace.

One last flurry with the broom before I leave you slobs to code
in your own filth. Eliminated all the trailing whitespace I
could manage, with special prejudice reserved for the test cases
which depended on the preservation of trailing whitespace.

Was reminded I cannot figure out how to eliminate the trailing
space on the "scala> " prompt in repl transcripts. At least
reduced the number of such empty prompts by trimming transcript
code on the way in.

Routed ConsoleReporter's "printMessage" through a trailing
whitespace stripping method which might help futureproof
against the future of whitespace diseases. Deleted the up-to-40
lines of trailing whitespace found in various library files.

It seems like only yesterday we performed whitespace surgery
on the whole repo. Clearly it doesn't stick very well. I suggest
it would work better to enforce a few requirements on the way in.

1 files changed, 3 insertions, 3 deletions

diff --git a/test/files/run/t2867.scala b/test/files/run/t2867.scala
index 0d30f95f8d..25e55eaecd 100644
--- a/test/files/run/t2867.scala
+++ b/test/files/run/t2867.scala
@@ -1,6 +1,6 @@
 object Test {
-  case class A(l: List[_]*) 
-  
+  case class A(l: List[_]*)
+
   def main(args: Array[String]): Unit = {
     /** Kind of sneaking a slightly different test in here as well as
      *  testing 2867.  How subversive.
@@ -9,7 +9,7 @@ object Test {
     val xs2 = List(1.0, 2.0, 3.0)
     val xs3 = List[Any](1.0f, 2.0f, 3.0f)
     val xs4 = List[Byte](1, 2, 3)
-    
+
     assert(A(List(xs1, xs2)) == A(List(xs3, xs4)))
   }
 }