Fix a critical bug with the drawText position algo

The bug was caused by a typo that appeared in f4a6fea while applying
some major style changes across the entire source.

dist/jcanvas.js

@@ -3747,7 +3747,7 @@ $.fn.drawText = function drawText(args) {
 					for (l = 0; l < lines.length; l += 1) {
 						line = lines[l];
 						// Add line offset to center point, but subtract some to center everything
-						y = (params.y + (l * params.height / lines.length) - ((lines.length - 1) * params.height / lines.length)) / 2;
+                     	y = params.y + (l * params.height / lines.length) - ((lines.length - 1) * params.height / lines.length) / 2;
 
 						ctx.shadowColor = params.shadowColor;