Avoid compiler warning about empty bodies

Make empty bodies of control flow statements more explicit.  Doing so
will allow us to use stricter compiler settings.  This would have
cought 4ece292c.

* console-client/xkb/xkb.c: Make empty bodies more explicit
* libpipe/pipe.c: Likewise.
* mach-defpager/default_pager.c: Likewise.
* pfinet/linux-src/net/ipv4/fib_hash.c: Likewise.
* pflocal/connq.c: Likewise.
* pflocal/socket.c: Likewise.

1 files changed, 1 insertions, 1 deletions

diff --git a/pflocal/connq.c b/pflocal/connq.c
index d88711e3..d86f9a24 100644
--- a/pflocal/connq.c
+++ b/pflocal/connq.c
@@ -212,7 +212,7 @@ connq_listen (struct connq *cq, struct timespec *tsp, struct sock **sock)
        request and another listener (should) eventually come along.
        (In fact it is very probably as the caller has likely done a
        select and will now follow up with an accept.)  */
-    ;
+    { /* Do nothing.  */ }
 
  out:
   pthread_mutex_unlock (&cq->lock);