dirmngr: Silence log output from dirmngr_ldap.

* dirmngr/dirmngr_ldap.c: Remove assert.h.
(main): Replace assert by log_assert.
* dirmngr/ldap.c (run_ldap_wrapper): Use debug options to pass
verbose options to dirmngr_ldap.
(start_cert_fetch_ldap): Ditto.
--

verbose is a pretty common option in dirmngr.conf and it would clutter
the logs with output from dirmngr_ldap.  Now we require DBG_EXTPROG
or DBG_LOOKUP to make dirmngr_ldap more verbose.

Signed-off-by: Werner Koch <wk@gnupg.org>

dirmngr/dirmngr_ldap.c

@@ -29,7 +29,6 @@
 # include <signal.h>
 #endif
 #include <errno.h>
-#include <assert.h>
 #include <sys/time.h>
 #include <unistd.h>
 #ifndef USE_LDAPWRAPPER
@@ -343,7 +342,7 @@ ldap_wrapper_main (char **argv, estream_t outstream)
     usage (1);
 #else
   /* All passed arguments should be fine in this case.  */
-  assert (argc);
+  log_assert (argc);
 #endif
 
 #ifdef USE_LDAPWRAPPER