needrestart: hack: recognize services under systemd --user as units

Ideally, we'd do something more reasonable, like treating them similarly
to system services and maybe even offering to restart some of them or
at the very least printing them in a format suitable for copy-pasting,
but for now just replace the process name with the service name and
save them under a separate key to hopefully distinguish them from
other processes under `systemd --user`.

needrestart

@@ -676,9 +676,14 @@ if(defined($opt_l)) {
 		    push(@{ $sessions{$1}->{"session #$2"}->{ $ptable->{$pid}->{fname} } }, $pid);
 		    next;
 		}
+		if($cgroup =~ m@/user\@(\d+)\.service(/.+)?/([^/]+\.service)$@) {
+		    print STDERR "$LOGPREF #$pid part of user service: uid=$1 unit=$3\n" if($nrconf{verbosity} > 1);
+		    push(@{ $sessions{$1}->{'user service'}->{ $3 } }, $pid);
+		    next;
+		}
 		if($cgroup =~ m@/user\@(\d+)\.service@) {
-		    print STDERR "$LOGPREF #$pid part of user manager service: uid=$1\n" if($nrconf{verbosity} > 1);
-		    push(@{ $sessions{$1}->{'user manager service'}->{ $ptable->{$pid}->{fname} } }, $pid);
+		    print STDERR "$LOGPREF #$pid part of user manageruid=$1\n" if($nrconf{verbosity} > 1);
+		    push(@{ $sessions{$1}->{'user manager'}->{ $ptable->{$pid}->{fname} } }, $pid);
 		    next;
 		}
 		if($cgroup =~ m@/machine.slice/machine.qemu(.*).scope@) {