Release v5.3.1 (#3864)
Release v5.3.1 (#3864)

* Fix Perl/Pod disambiguation
sebgod/linguist,sebgod/linguist,JJ/linguist,christop/linguist,github/linguist,github/linguist,pchaigno/linguist,stanhu/linguist,github/linguist,stanhu/linguist,pchaigno/linguist,christop/linguist,stanhu/linguist,erkyrath/linguist,sebgod/linguist,pchaigno/linguist,github/linguist,erkyrath/linguist,erkyrath/linguist,stanhu/linguist,yyx990803/linguist,yyx990803/linguist,yyx990803/linguist,JJ/linguist,JJ/linguist,erkyrath/linguist,yyx990803/linguist,pchaigno/linguist,sebgod/linguist,JJ/linguist