Formatted all .cc and .h code in rtengine, rtexif and rtgui using astyle

rtgui/dirselectionlistener.h

@@ -7,7 +7,7 @@
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
- * 
+ *
  *  RawTherapee is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -21,11 +21,12 @@
 
 #include <glibmm.h>
 
-class DirSelectionListener {
+class DirSelectionListener
+{
 
-  public:
+public:
     virtual ~DirSelectionListener () {}
-    virtual void dirSelected (const Glib::ustring& dirname, const Glib::ustring& openfile="") {}
+    virtual void dirSelected (const Glib::ustring& dirname, const Glib::ustring& openfile = "") {}
 };
 
 #endif