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

rtengine/minmax.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
@@ -58,7 +58,7 @@ if ((a)<(b)) { \
   else \
     (min) = (b); \
 } \
-} 
+}
 
 #define MAX3(a,b,c,min) \
 { \
@@ -73,4 +73,4 @@ if ((a)>(b)) { \
   else \
     (max) = (b); \
 } \
-} 
+}