Revise C++ coding style using clang-format

Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

1 files changed, 1 insertions, 1 deletions

diff --git a/Tests/PreOrder/simple.cxx b/Tests/PreOrder/simple.cxx
index ef26e79..7f99579 100644
--- a/Tests/PreOrder/simple.cxx
+++ b/Tests/PreOrder/simple.cxx
@@ -1,5 +1,5 @@
 extern void simpleLib();
-int main ()
+int main()
 {
   simpleLib();
   return 0;