Inf indent fix

[nurullahakin]

Partially solves #480

While the indent issue no longer happens with the {tag syntax, it still happens with other multiline syntax. Might get back to it some other time.

Example case:

<div>
{if true}
{include file="dashboard.tpl"}
{include
file="dashboard.tpl"
icon="svg/products.tpl"
}
{$recruit_attr = [
    'a',
    'b',
    'c'
]}
{/if}
</div>

After 4 formats:

<div>
    {if true}
        {include file="dashboard.tpl"}
        {include
            file="dashboard.tpl" // solved
            icon="svg/products.tpl" // solved
        } {* solved *}
        {$recruit_attr = [
                    'a', // keeps indenting
                    'b', // keeps indenting
                    'c' // keeps indenting
                ]} // keeps indenting
    {/if}
</div>