drop new line before semi-colon

```
$str = <<<EOT
	sdf
EOT
;
```
may format to like this:
```
$str = <<<EOT
		{$keywords}abcd"
EOT

;
```
or like this:
```
if ($a) {
	$str = <<<EOT
		{$keywords}abcd"
EOT
	;
}
```
so drop new line and whitespace before semi-colon I think will be better.

when semi-colon is at last line then add new line after it otherwise not.