Don't show uninstalled packages in the installed packages script

Author: mfxa

common/fejlfinding/list_programs_services.sh

@@ -2,7 +2,7 @@
 
 printf "\n\n%s\n\n" "===== LIST INSTALLED PROGRAMS: $0 ====="
 #apt list --installed
-dpkg -l
+dpkg -l | grep --invert-match "^rc"  # Don't show packages that WERE installed
 
 printf "\n\n%s\n\n" "===== LIST ALL SERVICES: $0 ====="
 systemctl list-units