pgsql: Fix thinko in commit 7d129ba54.

Fix thinko in commit 7d129ba54.

The revised logic in 001_ssltests.pl would fail if openssl
doesn't work or if Perl is a 32-bit build, because it had
already overwritten $serialno with something inappropriate
to use in the eventual match.  We could go back to the
previous code layout, but it seems best to introduce a
separate variable for the output of openssl.

Per failure on buildfarm member mamba, which has a 32-bit Perl.

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/d74cfe3263fa0a35cb962570697f422775cd12d6

Modified Files
--------------
src/test/ssl/t/001_ssltests.pl | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)