Variant locale should fallback to its base language before the general fallback language

[ajira86]

I started to use french language (code fr) and prepared my translations in lang/fr folder.

But today, I've to setup the fr_CH variant in config/app.php in order to have correct time format.

But when I did it, I noticed that Laravel will not fallback from variant language to its common base by default.

Is it possible to change it ?