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/t3613.scala b/test/files/run/t3613.scala
index 171a6a21aa..1293f62c0f 100644
--- a/test/files/run/t3613.scala
+++ b/test/files/run/t3613.scala
@@ -1,7 +1,7 @@
 class Boopy {
     private val s = new Schnuck
     def observer : PartialFunction[ Any, Unit ] = s.observer
-    
+
     private class Schnuck extends javax.swing.AbstractListModel {
         model =>
         val observer : PartialFunction[ Any, Unit ] = {
@@ -10,13 +10,13 @@ class Boopy {
         def getSize = 0
         def getElementAt( idx: Int ) = ???
     }
-    
+
 }
 
 object Test {
   def main(args: Array[String]): Unit = {
     val x = new Boopy
     val o = x.observer
-    o( "Boopy" ) // --> throws runtime error    
+    o( "Boopy" ) // --> throws runtime error
   }
 }