NAME
    Rename -- Rename a directory or file
SYNOPSIS
    success = Rename( oldName, newName )
    D0                D1       D2
    BOOL Rename(STRPTR, STRPTR)
FUNCTION
    Rename() attempts to rename the file or directory specified as
    'oldName' with the name 'newName'. If the file or directory
    'newName' exists, Rename() fails and returns an error. Both
    'oldName' and the 'newName' can contain a directory specification.
    In this case, the file will be moved from one directory to another.
    Note: it is impossible to Rename() a file from one volume to
    another.
INPUTS
    oldName - pointer to a null-terminated string
    newName - pointer to a null-terminated string
RESULTS
    success - boolean
SEE ALSO
    relabel()