Regression suite cleanup merged from 2.5.x.

apache2/t/regression/server_root/conf/httpd.conf.in

@@ -23,6 +23,8 @@
 
 ServerName localhost
 
+CoreDumpDirectory @MSC_REGRESSION_SERVERROOT_DIR@/tmp
+
 LogLevel debug
 ErrorLog @MSC_REGRESSION_LOGS_DIR@/error.log
 

apache2/t/run-regression-tests.pl.in

@@ -279,6 +279,7 @@ sub runfile {
 
 			# Search for all file matches
 			if ($rc == 0 and exists $t{match_file} and defined $t{match_file}) {
+				sleep 1; # Make sure the file exists
 				for my $key (keys %{ $t{match_file} || {}}) {
 					my($neg,$fn) = ($key =~ m/^(-?)(.*)$/);
 					my $m = $t{match_file}{$key};