pg_dump: Fix failing test on ubuntu 18
perl 5.26 packaged with ubuntu 18 didn't like some newly introduced regex,
this fixes the failing test for that platform.
Failed test 'should dump CREATE EXTERNAL WEB TABLE dump_test.dummy_ext_tab`
Authored-by: Brent Doil
@@ -1569,7 +1569,7 @@ my %tests = (
\n\QOPTIONS (\E
\n\s+\Qcommand 'echo foo',\E
\n\s+\Qdelimiter '\E\s+\Q',\E
- \n\s+\Qencoding '6',\E
+ \n\s+\Qencoding '\E\d\Q',\E
\n\s+\Qescape E'\\',\E
\n\s+\Qexecute_on 'ALL_SEGMENTS',\E
\n\s+\Qformat 'text',\E
