pkg_add: stop advising to remove files on update

[Klemens Nanni]

Make that last line disappear unless you actually delete the package:

        # pkg_add -uDinstalled ietf-cli
        quirks-7.105:updatedb-0p0->0p0: ok
        quirks-7.105 signed on 2025-04-26T20:42:44Z
        quirks-7.105->7.105: ok
        [...]
        ietf-cli-1.29p0->1.29p0: ok
        Read shared items: ok
        --- -ietf-cli-1.29p0 -------------------
        You should also run rm -rf /var/db/ietf-mirrors/*

So `pkg_delete ietf-cli' will still print it.

There are various forms of "You should also ..." messages, I only changed
those inside delete() functions, but perhaps there's more.

Feedback? OK?

Index: /s/usr.sbin/pkg_add/OpenBSD/Delete.pm
===================================================================
RCS file: /cvs/src/usr.sbin/pkg_add/OpenBSD/Delete.pm,v
diff -u -p -r1.169 Delete.pm
--- /s/usr.sbin/pkg_add/OpenBSD/Delete.pm       11 Oct 2023 13:54:43 -0000      
1.169
+++ /s/usr.sbin/pkg_add/OpenBSD/Delete.pm       27 Apr 2025 11:19:09 -0000
@@ -606,7 +606,7 @@ sub delete($self, $state)
        if ($state->{extra}) {
                unlink($realname) or
                    $state->say("problem deleting extra file #1: #2", 
$realname, $!);
-       } else {
+       } elsif (!$state->{update}) {
                $state->log("You should also remove #1", $realname);
                $self->mark_dir($state);
        }
@@ -621,7 +621,7 @@ sub delete($self, $state)
        my $realname = $self->realname($state);
        if ($state->{extra}) {
                $self->SUPER::delete($state);
-       } else {
+       } elsif (!$state->{update}) {
                $state->log("You should also remove the directory #1", 
$realname);
                $self->mark_dir($state);
        }
@@ -633,7 +633,7 @@ sub delete($self, $state)
 {
        if ($state->{extra}) {
                $self->run($state);
-       } else {
+       } elsif (!$state->{update}) {
                $state->log("You should also run #1", $self->{expanded});
        }
 }