dispchar for oauth_client_secret

[Noah Misch]

commit b3f0be7 wrote:
+       {"oauth_scope", NULL, NULL, NULL,
+               "OAuth-Scope", "", 15,
+       offsetof(struct pg_conn, oauth_scope)},

The field containing "" is documented as follows:

        char       *dispchar;           /* Indicates how to display this field 
in a
                                                                 * connect 
dialog. Values are: "" Display
                                                                 * entered 
value as is "*" Password field -
                                                                 * hide value 
"D"  Debug option - don't show
                                                                 * by default */

I suspect this should use .dispchar="*" to encourage UIs to display
oauth_client_secret like a password field.  Thoughts?

[I didn't review commit b3f0be7, but this caught my attention.]