watch: reset HUP + USR1 signal handlers in children

Child processes handling IMAP/NNTP aren't going to want
to handle config reloads nor forced rescans, those are
exclusively for the parent.  We'll leave a note that
QUIT/TERM/INT can safely use the same callback for both
parent and children, as I nearly made the mistake of
resetting those to their default values in the child.

1 files changed, 1 insertions, 1 deletions

diff --git a/script/public-inbox-watch b/script/public-inbox-watch
index 870cd31b..d9215de9 100755
--- a/script/public-inbox-watch
+++ b/script/public-inbox-watch
@@ -41,7 +41,7 @@ if ($watch) {
                 warn "# scanning\n";
                 $watch->trigger_scan('full');
         };
-        my $quit = sub {
+        my $quit = sub { # may be called in IMAP/NNTP children
                 $watch->quit if $watch;
                 $watch = undef;
                 $0 .= ' quitting';