Fix syntax error in camera_attributes_set_exposure documentation

doc/classes/RenderingServer.xml

@@ -92,13 +92,13 @@
 				Sets the exposure values that will be used by the renderers. The normalization amount is used to bake a given Exposure Value (EV) into rendering calculations to reduce the dynamic range of the scene.
 				The normalization factor can be calculated from exposure value (EV100) as follows:
 				[codeblock]
-				func get_exposure_normalization(float ev100):
-				    			    return 1.0 / (pow(2.0, ev100) * 1.2)
+				func get_exposure_normalization(ev100: float):
+				    return 1.0 / (pow(2.0, ev100) * 1.2)
 				[/codeblock]
 				The exposure value can be calculated from aperture (in f-stops), shutter speed (in seconds), and sensitivity (in ISO) as follows:
 				[codeblock]
-				func get_exposure(float aperture, float shutter_speed, float sensitivity):
-				    return log2((aperture * aperture) / shutterSpeed * (100.0 / sensitivity))
+				func get_exposure(aperture: float, shutter_speed: float, sensitivity: float):
+				    return log((aperture * aperture) / shutter_speed * (100.0 / sensitivity)) / log(2)
 				[/codeblock]
 			</description>
 		</method>