basebackup_to_shell: Add missing MarkGUCPrefixReserved()

Oversight in c6306db24, as per a requirement from 88103567.  All the
other modules in the tree, be they in contrib/ or src/test/modules/,
already do that.

Author: Bharath Rupireddy
Discussion: https://postgr.es/m/CALj2ACUy7q_KwSMda+2SHPSWep32tNUM8cXGRS3=-Vfodo9OUg@mail.gmail.com

diff --git a/contrib/basebackup_to_shell/basebackup_to_shell.c b/contrib/basebackup_to_shell/basebackup_to_shell.c
index f0ddef198704626c38986b4ceb568d24b04dead2..fd462a8ff4de0f2e67f142640764fc1cbbeab28f 100644 (file)
--- a/contrib/basebackup_to_shell/basebackup_to_shell.c
+++ b/contrib/basebackup_to_shell/basebackup_to_shell.c
@@ -86,6 +86,8 @@ _PG_init(void)
                                                           0,
                                                           NULL, NULL, NULL);
 
+       MarkGUCPrefixReserved("basebackup_to_shell");
+
        BaseBackupAddTarget("shell", shell_check_detail, shell_get_sink);
 }