Clean Makefile indentation.

Makefile

@@ -1,8 +1,8 @@
-CXX     = clang++
-CXXFLAGS = -std=c++11 -W -Wall -O3 -ffast-math -g -Werror
-DEFINES = -DSIMD
-BUILD_DIR=/tmp
-IMG=img/lena.ppm
+CXX       = clang++
+CXXFLAGS  = -std=c++11 -W -Wall -O3 -ffast-math -g -Werror
+DEFINES   = -DSIMD
+BUILD_DIR = /tmp
+IMG       = img/lena.ppm
 
 all: rotation.cpp
 	$(CXX) $(CXXFLAGS) $(DEFINES) $< -o $(BUILD_DIR)/rotation

rotation.cpp

@@ -766,7 +766,6 @@ void rotate_pixel(TiledImage<W, H> const& src,
   rot_tile[1] = _mm_extract_epi16(top, 1) + _mm_extract_epi16(top, 5);
   rot_tile[2] = _mm_extract_epi16(top, 2) + _mm_extract_epi16(top, 6);
 
-
 #endif // ! SIMD
 }