check-installed: Fix error message

The error message of a missing bee file in the system doesn't show the
file extension. This is a result of a confusion of the package argument
of the beeversion comand and the argument to its --format option.

Correct call to beeeversion, so that $beefile contains the file
extension.

scripts/check-installed

@@ -58,8 +58,8 @@ for my $beefile (scandir('.')) {
 for my $dir (scandir('/usr/share/bee')) {
 	my $pkg=$dir;
 	$pkg eq 'mxtools-0.0-0' and next;
-	my $beefile=save_qx('beeversion','--format','%F',"$pkg.bee");
-	unless (-e "/usr/share/bee/$pkg/$beefile.bee") {
+	my $beefile=save_qx('beeversion', '--format', '%F.bee', $pkg);
+	unless (-e "/usr/share/bee/$pkg/$beefile") {
 		print "# no such file /usr/share/bee/$pkg/$beefile\n";
 		next;
 	}