t/02_relation_size.t: Sleep 0.5s for the MRTG test

Sleeping 1s created a race condition because we also check after 1s, so
it was only luck whether the result of that check is "1" or "2"

1 files changed, 2 insertions, 1 deletions

diff --git a/t/02_replicate_row.t b/t/02_replicate_row.t
index 8aee019be..7df6354db 100644
--- a/t/02_replicate_row.t
+++ b/t/02_replicate_row.t
@@ -7,6 +7,7 @@ use strict;
 use warnings;
 use Data::Dumper;
 use Test::More tests => 19;
+use Time::HiRes qw(usleep);
 use lib 't','.';
 use CP_Testing;
 
@@ -144,7 +145,7 @@ if (fork) {
         qq{1\n0\n\n\n}, $t);
 }
 else {
-    sleep 1;
+    usleep 500_000; # 0.5s
     $SQL = q{UPDATE reptest SET foo = 'yin' WHERE id = 1};
     $dbh2->do($SQL);
     $dbh2->commit();