Fix typo in pg_dumpall.c

Oversight in 2158628.

Reported-by: Justin Pryzby
Discussion: https://postgr.es/m/20220117062006.GY14051@telsasoft.com

src/bin/pg_dump/pg_dumpall.c

@@ -653,7 +653,7 @@ help(void)
 	printf(_("  --no-security-labels         do not dump security label assignments\n"));
 	printf(_("  --no-subscriptions           do not dump subscriptions\n"));
 	printf(_("  --no-sync                    do not wait for changes to be written safely to disk\n"));
-	printf(_("  --no-tables-access-method    do not dump table access methods\n"));
+	printf(_("  --no-table-access-method     do not dump table access methods\n"));
 	printf(_("  --no-tablespaces             do not dump tablespace assignments\n"));
 	printf(_("  --no-toast-compression       do not dump TOAST compression methods\n"));
 	printf(_("  --no-unlogged-table-data     do not dump unlogged table data\n"));