Cleanup: Fix Cycles Apache header.

This was already mixed a bit, but the dot belongs there.

intern/cycles/render/camera.cpp

@@ -11,7 +11,7 @@
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
- * limitations under the License
+ * limitations under the License.
  */
 
 #include "camera.h"