Log Message:
sane-backends: Update to 1.0.32

pkgsrc changes:
---------------
  * Set nls option to default enabled to avoid forgetting new .mo files in PLIST
    when updating.
  * Remove patch-backend_genesys_low.cpp since it has been fixed in 1.0.31.
  * Add textproc/libxml2 missing dependency thanks to verifypc.

upstream changes:
-----------------
The changes are listed in ChangeLog.