Fix initdb TAP tests. (#1503)

Currently initdb TAP tests fails due to
number-of-checks assertions. Trivially fix specifying correct number
of tests

Author: reshke

src/bin/initdb/t/001_initdb.pl

@@ -11,7 +11,7 @@
 use File::stat qw{lstat};
 use PostgresNode;
 use TestLib;
-use Test::More tests => 22;
+use Test::More tests => 22 + 2;
 
 my $tempdir = TestLib::tempdir;
 my $xlogdir = "$tempdir/pgxlog";