make mk-udev-hwdb respect input with more than 4 hex digits - corrected checksums

PKGBUILD

@@ -3,7 +3,7 @@ license=('GPL' 'custom:Brother')
 arch=('i686' 'x86_64')
 pkgname=brscan4
 pkgver=0.4.11_1
-pkgrel=3
+pkgrel=4
 pkgdesc="SANE drivers from Brother for compatible models"
 depends=('sane')
 optdepends=('gtk2: for using brscan_gnetconfig')