Bug in SRL_ldap.c; threaderror never gets reset

[Bruce Stephens <bruce.stephens@xxxxxxxxx>]

It appears that threaderror is a regular global variable which starts as
SRL_SUCCESS and can be set to SRL_LDAP_UNAVAILABLE if an LDAP bind
fails.  But it can never get set to anything else, so once a bind fails
all subsequent binds will result in failure (though they may in fact
succeed).

I suspect the following is a suitable fix:

--- a/cml/srl/src/SRL_ldap.c
+++ b/cml/srl/src/SRL_ldap.c
@@ -1400,7 +1400,8 @@ void SRLi_LDAPBind(LDAPInfo_struct *f)
                        if (f->LDAPFunctions->abandon)
                                err = f->LDAPFunctions->abandon(f->ldapIDinfo->ldapID, msgid);
                        threaderror = SRL_LDAP_UNAVAILABLE;
-               }
+               } else
+                       threaderror = LDAP_SUCCESS;
        }
        else
        {