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.

Source/cmLoadCommandCommand.h

@@ -19,11 +19,9 @@ class cmLoadCommandCommand : public cmCommand
 public:
   virtual cmCommand* Clone() { return new cmLoadCommandCommand; }
   virtual bool InitialPass(std::vector<std::string> const& args,
-                           cmExecutionStatus &status);
-  virtual std::string GetName() const {return "load_command";}
+                           cmExecutionStatus& status);
+  virtual std::string GetName() const { return "load_command"; }
   cmTypeMacro(cmLoadCommandCommand, cmCommand);
 };
 
-
-
 #endif