app-container: remove smart quotes
app-container: remove smart quotes

Thanks to Eric who reported this to me over email.

krnowak/appc-spec,ChengTiesheng/spec,yifan-gu/spec,iaguis/appc-spec,zenlinTechnofreak/spec,3ofcoins/appc-spec,stufflebear/spec,dgonyeo/spec,ChengTiesheng/spec,3ofcoins/appc-spec,endocode/appc-spec,ChengTiesheng/spec,yifan-gu/spec,apcera/appc-spec,mesosphere/spec,jonboulle/spec,dustymabe/spec,alban/appc-spec,squeed/spec,apcera/appc-spec,apcera/appc-spec,iaguis/appc-spec,marineam/spec,endocode/appc-spec,squeed/spec,sgotti/spec,tklauser/spec,appc/spec,stufflebear/spec,krnowak/appc-spec,alban/appc-spec,sgotti/spec,appc/spec,squeed/spec,zenlinTechnofreak/spec,marineam/spec,dgonyeo/spec,jonboulle/spec,yifan-gu/spec,marineam/spec,craimbert/spec,craimbert/spec,mesosphere/spec,iaguis/appc-spec,tklauser/spec,craimbert/spec,dustymabe/spec,tklauser/spec,stufflebear/spec,alban/appc-spec,philips/spec,krnowak/appc-spec,dustymabe/spec,appc/spec,3ofcoins/appc-spec,jonboulle/spec,zenlinTechnofreak/spec,endocode/appc-spec,philips/spec,dgonyeo/spec