s3: usershare path var

[Olaf Flebbe]

Hi,

while tripping over bug #6725 I discovered that the documentation of
the default value of variable "usershare path" is not entirely 
consistent with the implementation.

documentation reads
usershare path = NULL

actually implemented is (looked into master and 3.4.x)

usershare path = STATEDIR/usershares

(STATEDIR is the compile time define STATEDIR, it may not the state 
directory variable).

Since this is even used to turn this feature on and off I am wondering 
what should be fixed: Documentation or Implementation?

Cheers
    Olaf