I cannot confirm not having had this line before the upgrade (because I have no backup from the Edgy files). The information that the line only came with Feisty was a hint from a previous discussion after I noted (from the file date) that something obviously had touched the smb.conf during the upgrade. But I'm sure that the bug - i. e. failure to provide the samba share - only came with the upgrade.
I cannot confirm not having had this line before the upgrade (because I have no backup from the Edgy files). The information that the line only came with Feisty was a hint from a previous discussion after I noted (from the file date) that something obviously had touched the smb.conf during the upgrade. But I'm sure that the bug - i. e. failure to provide the samba share - only came with the upgrade.