Include tailing colons to link target.

Allows configuration like this:

    HOMEDIR/.wine/drive_c:HOMEDIR/.wine/dosdevices/c:
    /:HOMEDIR/.wine/dosdevices/z:

in

    /etc/linuxmuster-client/profile/links.conf
Merge pull request #2 from ypid/fix-link-colon

Include tailing colons to link target.