Trim trailing zeros

Author: robocoder

src/Node/Number.php

@@ -291,8 +291,9 @@ public function output(Compiler $compiler = null)
 
         reset($units);
         $unit = key($units);
-
-        return preg_replace('/[.]0*$/', '', number_format($dimension, static::$precision)) . $unit;
+        $dimension = number_format($dimension, static::$precision, '.', '');
+        
+        return (static::$precision ? rtrim($dimension, '0') : $dimension) . $unit;
     }
 
     /**