(l2g_stop): Send a quit command to test-l2g, so that we can be sure

	that the test case doesn't miss some unexpected final output
	from the test program.
(unanchored_expect): Fixed an error message.

src/server/testsuite/config/unix.exp

@@ -63,8 +63,8 @@ proc l2g_start {} {
 proc l2g_stop {} {
     global spawn_id
 
-    # FIXME: send explicit quit command and check that there is no
-    # trailing unexpected output before the "ok, I die" response.
+    l2g_send "q"
+    simple_expect "test-l2g quitting"
     close
     wait
 }
@@ -132,7 +132,7 @@ proc unanchored_expect {regex testname} {
 	buffer_full 	{fail "$test (buffer_full)"}
 	eof 		{fail "$test (eof)"; wait}
 	-re "($any*)$nl" {
-	    fail "$test (unexpected line '\$expect_out(1,string)' waiting for '$regex')"
+	    fail "$test (unexpected line '$expect_out(1,string)' waiting for '$regex')"
 	    exp_continue
 	}
 	-re "($any*)l2g>" {