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, 1 insertions, 1 deletions

diff --git a/test/files/run/t4996.scala b/test/files/run/t4996.scala
index 8e7636aaac..8a38e7fe7f 100644
--- a/test/files/run/t4996.scala
+++ b/test/files/run/t4996.scala
@@ -20,7 +20,7 @@ trait M extends B {
   abstract override def foo(t: Int) {
     super.foo(t)
     println("M.foo")
-  } 
+  }
 }