Corrected indentation of license.

src/events/SDL_gesture.c

@@ -11,11 +11,11 @@
   freely, subject to the following restrictions:
 
   1. The origin of this software must not be misrepresented; you must not
-  claim that you wrote the original software. If you use this software
-  in a product, an acknowledgment in the product documentation would be
-  appreciated but is not required.
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
   2. Altered source versions must be plainly marked as such, and must not be
-  misrepresented as being the original software.
+     misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */