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, 2 insertions, 2 deletions

diff --git a/test/files/pos/t6963c.scala b/test/files/pos/t6963c.scala
index 0b6b5c757f..d3c3616eb2 100644
--- a/test/files/pos/t6963c.scala
+++ b/test/files/pos/t6963c.scala
@@ -9,9 +9,9 @@ object Test {
     case _: Array[_]  => true
     case _            => false
   }
-  
+
   def f4(x: Any) = x.isInstanceOf[Traversable[_]]
-  
+
   def f5(x1: Any, x2: Any, x3: AnyRef) = (x1, x2, x3) match {
     case (Some(_: Seq[_]), Nil, _)        => 1
     case (None, List(_: List[_], _), _)   => 2