tests: test-resolve: wait until all queries are completed

This is a follow-up for 4a134c4903dbf6ef6c6a

Fixes:

$ ./test-resolve
209.132.183.105:80
209.132.183.105:80
canonical name: n/a
193.99.144.85:0
[2a02:2e0:3fe:1001:7777:772e:2:85]:0
canonical name: www.heise.de
Host: web.heise.de -- Serv: http

$ ./test-resolve
193.99.144.85:0
[2a02:2e0:3fe:1001:7777:772e:2:85]:0
canonical name: www.heise.de
Host: web.heise.de -- Serv: http

$ ./test-resolve
...

1 files changed, 4 insertions, 4 deletions

diff --git a/src/libsystemd/sd-resolve/test-resolve.c b/src/libsystemd/sd-resolve/test-resolve.c
index e78a75c9ea..ce97e81ed6 100644
--- a/src/libsystemd/sd-resolve/test-resolve.c
+++ b/src/libsystemd/sd-resolve/test-resolve.c
@@ -101,11 +101,11 @@ int main(int argc, char *argv[]) {
         if (r < 0)
                 log_error_errno(r, "sd_resolve_getnameinfo(): %m");
 
-        /* Wait until the two queries are completed */
-        while (sd_resolve_query_is_done(q1) == 0 ||
-               sd_resolve_query_is_done(q2) == 0) {
-
+        /* Wait until all queries are completed */
+        for (;;) {
                 r = sd_resolve_wait(resolve, (uint64_t) -1);
+                if (r == 0)
+                        break;
                 if (r < 0) {
                         log_error_errno(r, "sd_resolve_wait(): %m");
                         assert_not_reached("sd_resolve_wait() failed");