Bug 674852 - crash in ldap-agent when using OpenLDAP

The ldap-agent daemon can crash at startup due to an uninitialized
variable being used to represent a buffer length.  This patch
initializes the buffer length properly.

ldap/servers/snmp/main.c

@@ -248,7 +248,7 @@ load_config(char *conf_path)
     FILE *conf_file = NULL;
 #if defined(USE_OPENLDAP)
     LDIFFP *dse_fp = NULL;
-    int buflen;
+    int buflen = 0;
 #else
     FILE *dse_fp = NULL;
 #endif