[sane-devel] Patch to fix all autocalibration problems on CanoScan LiDE

[Monty]

> family.  I could only test one of the numerous permutations.  Although
> the stock autocalibration in plustek-usbshading appears buggy, I
> didn't want to accidentally make things work for people relying on
> other scanners it supports.  First rule: do no harm.

Although 'make things work' would certainly cause some Linux users a
heart attack, I did intend this to read 'make things break'.

Monty