Upgrade: espree@^3.4.2 (#8526)
Upgrade: espree@^3.4.2 (#8526)

Since I had espree@>=3.4.0 <3.4.2 on my system, npm install never updated the package. With ESLint freezing the parser options/config object, seems we are relying on 3.4.2's bugfix not to set ecmaFeatures.impliedStrict. So this dependency really should be at 3.4.2.
AcceptableIce/eslint,scriptdaemon/eslint,menelaos/eslint-solarized,mzgol/eslint,Trott/eslint,gabro/eslint,onurtemizkan/eslint,Aladdin-ADD/eslint,eslint/eslint,Gillespie59/eslint,kentcdodds/eslint,kentcdodds/eslint,BenoitZugmeyer/eslint,ABaldwinHunter/eslint,AcceptableIce/eslint,platinumazure/eslint,platinumazure/eslint,whitneyit/eslint,ljharb/eslint,ljharb/eslint,mzgol/eslint,pvamshi/eslint,DavidAnson/eslint,Gillespie59/eslint,pvamshi/eslint,BenoitZugmeyer/eslint,Aladdin-ADD/eslint,scriptdaemon/eslint,ABaldwinHunter/eslint,eslint/eslint,brgibson/eslint,onurtemizkan/eslint,gabro/eslint,Moeriki/eslint,Trott/eslint,whitneyit/eslint,Moeriki/eslint,menelaos/eslint-solarized,brgibson/eslint,DavidAnson/eslint