Browsing French translation

An empty placeholder that we can use in the future for
* some motorway commands that are now suppressed but we
* can in some cases make it say here :
* 'follow destination blabla' without any further driving instructions,
* in cases where relevant destination info is available.
* Even if there is no driving command to be announced, in some cases
* there is an overhead roadsign in preparation of an upcoming road-split,
* and then we can give useful info to the driver.
*
*  UNTESTED !
*