Help with htaccess

[eGullet]

Sometime recently either Google started storing our pages differently, or the software started handling degenerate or old-style URLs differently. I am getting links out of Google in the form:

https://forums.egullet.org/index.php/topic/142948-people-who-just-cant-get-a-meal-ready-on-time/?&hl= late

Notice the index.php and the weird query string at the end. I don't understand how to write an .htaccess rule to correct these to the modern canonical form (e.g. to strip out the index.php part, and to convert that hl into the correct form for a highlight.) Can anyone help out with this?