https://fedorahosted.org/389/ticket/603

https://fedorahosted.org/389/attachment/ticket/603/0001-Ticket-603-A-logic-error-in-str2simple.patch

Fix description: str2simple sets the strdup'ed type this way:

if ( f->f_choice == LDAP_FILTER_PRESENT ) {

f->f_type = slapi_ch_strdup( str );

} else if ( unescape_filter ) {

f->f_avtype = slapi_ch_strdup( str );

} if ( !unescape_filter ) {

f->f_avtype = slapi_ch_strdup( str );

}

If f_choice is LDAP_FILTER_PRESENT and !unescape_filter is
true, the first strdup'ed string is leaked since f_type
and f_avtype share the same memory. But currently, str2simple
is not called with (unescape_filter == 0). Thus there is no
chance to satisfy the condition. This patch fixes the flaw.