Add IS_SYSTEMDUSERUNIT check

evocheck.sh

@@ -907,6 +907,15 @@ check_log2mailsystemdunit() {
             && failed "IS_LOG2MAILSYSTEMDUNIT" "/etc/init.d/log2mail may be deleted (use systemd unit)"
     fi
 }
+check_systemduserunit() {
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        awk 'BEGIN { FS = ":" } { print $1, $6 }' /etc/passwd | while read -r user dir; do
+            if ls "${dir}"/.config/systemd/user/*.service > /dev/null 2> /dev/null; then
+                failed "IS_SYSTEMDUSERUNIT" "systemd unit found for user ${user}"
+            fi
+        done
+    fi
+}
 check_listupgrade() {
     test -f /etc/cron.d/listupgrade \
         || failed "IS_LISTUPGRADE" "missing listupgrade cron"
@@ -1599,6 +1608,7 @@ main() {
         test "${IS_BROADCOMFIRMWARE:=1}" = 1 && check_broadcomfirmware
         test "${IS_HARDWARERAIDTOOL:=1}" = 1 && check_hardwareraidtool
         test "${IS_LOG2MAILSYSTEMDUNIT:=1}" = 1 && check_log2mailsystemdunit
+        test "${IS_SYSTEMDUSERUNIT:=1}" = 1 && check_systemduserunit
         test "${IS_LISTUPGRADE:=1}" = 1 && check_listupgrade
         test "${IS_MARIADBEVOLINUXCONF:=0}" = 1 && check_mariadbevolinuxconf
         test "${IS_SQL_BACKUP:=1}" = 1 && check_sql_backup