Display 'password_required' option for \dRs+ command.

The commit c3afe8c added a new subscription option 'password_required'
which should be shown with \dRs+ command.

Author: Vignesh C
Reviewed-by: Amit Kapila, Robert Haas
Discussion: https://postgr.es/m/CAA4eK1LRz5sCZxwCW6OtpjLtWPvRwBihQOM4jzQm6ppfpexqGA@mail.gmail.com
Discussion: https://postgr.es/m/9DFC88D3-1300-4DE8-ACBC-4CEF84399A53@enterprisedb.com

Author: Amit Kapila

src/bin/psql/describe.c

@@ -6493,7 +6493,7 @@ describeSubscriptions(const char *pattern, bool verbose)
 	PGresult   *res;
 	printQueryOpt myopt = pset.popt;
 	static const bool translate_columns[] = {false, false, false, false,
-	false, false, false, false, false, false, false, false, false};
+	false, false, false, false, false, false, false, false, false, false};
 
 	if (pset.sversion < 100000)
 	{
@@ -6551,8 +6551,10 @@ describeSubscriptions(const char *pattern, bool verbose)
 		if (pset.sversion >= 160000)
 			appendPQExpBuffer(&buf,
 							  ", suborigin AS \"%s\"\n"
+							  ", subpasswordrequired AS \"%s\"\n"
 							  ", subrunasowner AS \"%s\"\n",
 							  gettext_noop("Origin"),
+							  gettext_noop("Password required"),
 							  gettext_noop("Run as Owner?"));
 
 		appendPQExpBuffer(&buf,