remove floor function.

Thanks jfcherng for the hint

Author: JBlond

lib/jblond/Diff/Renderer/Html/HtmlArray.php

@@ -254,12 +254,12 @@ protected function fixSpaces($matches)
 			if ($count == 0) {
 				continue;
 			}
-			$div = (int) floor($count / 2);
+			$div = ($count / 2);
 			$mod = $count % 2;
 			$buffer	.= str_repeat('  ', $div).str_repeat(' ', $mod);
 		}
 
-		$div = (int) floor($count / 2);
+		$div = ($count / 2);
 		$mod = $count % 2;
 		return str_repeat('  ', $div).str_repeat(' ', $mod);
 	}