For completness: Lintian issues to be fixed:
W: wifi-qr: debian-changelog-line-too-long [usr/share/doc/wifi-qr/changelog.Debian.gz:6] I: wifi-qr: capitalization-error-in-description WiFi Wi-Fi I: wifi-qr: capitalization-error-in-description-synopsis WiFi Wi-Fi I: wifi-qr source: patch-not-forwarded-upstream [debian/patches/webcam-support] (see DEP-3 header how to document patches properly)
