Accepting request 618750 from home:bmwiedemann:branches:Printing

require python3-Pillow for hp-scan to work
otherwise it prints an error about needing the 'python imaging library'

OBS-URL: https://build.opensuse.org/request/show/618750
OBS-URL: https://build.opensuse.org/package/show/Printing/hplip?expand=0&rev=155

hplip.spec

@@ -167,6 +167,7 @@ Requires:       foomatic-filters
 # to get "all the HPLIP stuff" installed has the RPM requirement:
 Requires:       %{pymod %gobject}
 Requires:       ghostscript
+Requires:       %{pymod Pillow}
 
 %if %use_qt5
 Requires:       %{pymod qt5}