Removed trailing whitespace.
diff --git a/examples/heightmap.c b/examples/heightmap.c
index 90c4213..0cbf6bf 100644
--- a/examples/heightmap.c
+++ b/examples/heightmap.c
@@ -31,10 +31,10 @@
#include "getopt.h"
-#define GLFW_NO_GLU 1
+#define GLFW_NO_GLU 1
#include <GL/glfw3.h>
-/* OpenGL 3.3 support
+/* OpenGL 3.3 support
* Functions are effectively mapped in init_opengl() */
#ifndef GL_VERSION_3_0
/* no defines */
@@ -124,7 +124,7 @@
#define GL_STENCIL_BACK_REF 0x8CA3
#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4
#define GL_STENCIL_BACK_WRITEMASK 0x8CA5
-#endif
+#endif
@@ -160,7 +160,7 @@
#define GL_DYNAMIC_READ 0x88E9
#define GL_DYNAMIC_COPY 0x88EA
#define GL_SAMPLES_PASSED 0x8914
-#endif
+#endif
@@ -190,14 +190,14 @@
typedef void (APIENTRY * PFN_glEnableVertexAttribArray)(GLuint index);
typedef void (APIENTRY * PFN_glVertexAttrib1f)(GLuint index, GLfloat x);
typedef void (APIENTRY * PFN_glVertexAttribPointer)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
-/* OpenGL 1.5 */
+/* OpenGL 1.5 */
typedef void (APIENTRY * PFN_glBindBuffer)(GLenum target, GLuint buffer);
typedef void (APIENTRY * PFN_glDeleteBuffers)(GLsizei n, const GLuint *buffers);
typedef void (APIENTRY * PFN_glGenBuffers)(GLsizei n, GLuint *buffers);
typedef void (APIENTRY * PFN_glBufferData)(GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage);
typedef void (APIENTRY * PFN_glBufferSubData)(GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid *data);
-/* OpenGL function pointers */
+/* OpenGL function pointers */
static PFN_glGenBuffers pglGenBuffers = NULL;
static PFN_glGenVertexArrays pglGenVertexArrays = NULL;
static PFN_glDeleteVertexArrays pglDeleteVertexArrays = NULL;