#pragma once for our headers plus drive-by formatting

rtengine/iccmatrices.h

@@ -16,8 +16,7 @@
  *  You should have received a copy of the GNU General Public License
  *  along with RawTherapee.  If not, see <https://www.gnu.org/licenses/>.
  */
-#ifndef _ICCMATRICES_
-#define _ICCMATRICES_
+#pragma once
 
 // Bradford transform between illuminants
 constexpr double d65_d50[3][3] =  {
@@ -296,4 +295,3 @@ constexpr double d50_best[3][3] = {
     {-0.253000840399762,  0.0215532098817316,1.22569552576991}
 };
  */
-#endif