Patch: Perl backend sends bind result twice (ITS#1783)

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Written by Hallvard B. Furuseth and placed into the public domain.
This software is not subject to any license of the University of Oslo.
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perl_back_bind() should not send LDAP_SUCCESS, the frontend does that.
Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>, April 2002.

servers/slapd/back-perl/bind.c

@@ -85,7 +85,9 @@ perl_back_bind(
 
 	Debug( LDAP_DEBUG_ANY, "Perl BIND returned 0x%04x\n", return_code, 0, 0 );
 
-	send_ldap_result( conn, op, return_code, NULL, NULL, NULL, NULL );
+	/* frontend will send result on success (0) */
+	if( return_code != LDAP_SUCCESS )
+		send_ldap_result( conn, op, return_code, NULL, NULL, NULL, NULL );
 
 	return ( return_code );
 }