Use strict comparisson
Use strict comparisson

postalservice14/commonmark,kkiernan/commonmark,garethellis36/commonmark,garethellis36/commonmark,stof/commonmark,fesor/commonmark,postalservice14/commonmark,bcremer/commonmark,hason/commonmark,thephpleague/commonmark,fesor/commonmark,hason/commonmark,colinodell/commonmark,thephpleague/commonmark,kkiernan/commonmark