fixed missing space in GLBufferAttribute example

examples/webgl_buffergeometry_points_glbufferattribute.html

@@ -127,7 +127,7 @@
 
 				setInterval( function () {
 
-					posAttr.buffer = (posAttr.buffer === pos ) ? pos2 : pos;
+					posAttr.buffer = ( posAttr.buffer === pos ) ? pos2 : pos;
 					posAttr.needsUpdate = true;
 
 				}, 2000 );