Fix bug #7263 - Unable to print using Samba 3.5.1 and cups-1.1.23-40.46 on SLES10.

Fix bug #7263 - Unable to print using Samba 3.5.1 and cups-1.1.23-40.46 on SLES10.

Fix cups encryption setting

I had the same problem and it's due to the fact that samba doesn't respect the
"cups encryption" setting since lp_cups_encrypt changes the value: if you set
"cups encryption=no", the first call will change it to HTTP_ENCRYPT_NEVER,
since that is 1 (i.e. true), the next call will change it to
HTTP_ENCRYPT_ALWAYS and after that it'll remain set as HTTP_ENCRYPT_ALWAYS.
This patch fixes this problem.

Don't mix up the HTTP_ENCRYPT_XXX constants up with the
enumeration constants (True, False, Auto) used in the
loadparm code.