Putting kerberos/ldap logs somewhere useful

I got frustrated just now because this:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=crake&dt=2019-08-05%2021%3A18%3A23

is essentially undebuggable, thanks to the buildfarm's failure to
capture any error output from slapd.  That's not the buildfarm
script's fault: it's willing to capture everything placed in the
agreed-on log directory.  But the TAP test script randomly places
the daemon's log file somewhere else, one level up.  The kerberos
test script has the same problem.

Hence, I propose the attached.  This just moves the actual log
files ... we could possibly move the daemons' .conf files as well,
but I think they're probably not variable enough to be interesting.

            regards, tom lane

diff --git a/src/test/kerberos/t/001_auth.pl b/src/test/kerberos/t/001_auth.pl
index 34845a7..e3eb052 100644
--- a/src/test/kerberos/t/001_auth.pl
+++ b/src/test/kerberos/t/001_auth.pl
@@ -67,8 +67,8 @@ my $realm    = 'EXAMPLE.COM';
 
 my $krb5_conf   = "${TestLib::tmp_check}/krb5.conf";
 my $kdc_conf    = "${TestLib::tmp_check}/kdc.conf";
-my $krb5_log    = "${TestLib::tmp_check}/krb5libs.log";
-my $kdc_log     = "${TestLib::tmp_check}/krb5kdc.log";
+my $krb5_log    = "${TestLib::log_path}/krb5libs.log";
+my $kdc_log     = "${TestLib::log_path}/krb5kdc.log";
 my $kdc_port    = get_free_port();
 my $kdc_datadir = "${TestLib::tmp_check}/krb5kdc";
 my $kdc_pidfile = "${TestLib::tmp_check}/krb5kdc.pid";
diff --git a/src/test/ldap/t/001_auth.pl b/src/test/ldap/t/001_auth.pl
index 47bc090..5efb87a 100644
--- a/src/test/ldap/t/001_auth.pl
+++ b/src/test/ldap/t/001_auth.pl
@@ -52,7 +52,7 @@ my $ldap_datadir  = "${TestLib::tmp_check}/openldap-data";
 my $slapd_certs   = "${TestLib::tmp_check}/slapd-certs";
 my $slapd_conf    = "${TestLib::tmp_check}/slapd.conf";
 my $slapd_pidfile = "${TestLib::tmp_check}/slapd.pid";
-my $slapd_logfile = "${TestLib::tmp_check}/slapd.log";
+my $slapd_logfile = "${TestLib::log_path}/slapd.log";
 my $ldap_conf     = "${TestLib::tmp_check}/ldap.conf";
 my $ldap_server   = 'localhost';
 my $ldap_port     = get_free_port();