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, 4 insertions, 4 deletions

diff --git a/test/files/run/t2800.scala b/test/files/run/t2800.scala
index cc6fb30bbc..84d1de0507 100644
--- a/test/files/run/t2800.scala
+++ b/test/files/run/t2800.scala
@@ -3,20 +3,20 @@ object Test {
   def f2 = (5: Any) match { case List(x @ _*) => x ; case _ => false }
   def f3 = (Nil: Any) match { case List(x @ _*) => x ; case _ => false }
   def f4 = (Array(1): Any) match { case List(x @ _*) => x ; case _ => false }
-  
+
   def f5 = ("": Any) match { case Array(x @ _*) => x ; case _ => false }
   def f6 = (5: Any) match { case Array(x @ _*) => x ; case _ => false }
   def f7 = (Nil: Any) match { case Array(x @ _*) => x ; case _ => false }
   def f8 = (Array(1): Any) match { case Array(x @ _*) => x ; case _ => false }
-  
+
   def f9 = ("": Any) match { case x @ List(_*) => x ; case _ => false }
   def f10 = ("": Any) match { case List(_*) => true ; case _ => false }
   def f11 = (Nil: Any) match { case List(_*) => true ; case _ => false }
   def f12 = ("": Any) match { case x @ Array(_*) => x ; case _ => false }
   def f13 = ("": Any) match { case Array(_*) => true ; case _ => false }
   def f14 = (Nil: Any) match { case Array(_*) => true ; case _ => false }
-  
-  
+
+
   def main(args: Array[String]): Unit = {
     println(f1)
     println(f2)