lei q: prefix --alert ops with ':' instead of '-'

Using dashed keywords confuses the option parser without
"=" signs (and bash completion doesn't yet work with "=").

So use ":" instead of "-" as the prefix for internal ops,
since ":" is just as unlikely to be the first character of
an executable file in a user's $PATH.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/LeiOverview.pm b/lib/PublicInbox/LeiOverview.pm
index 98c89d12..c820f0d7 100644
--- a/lib/PublicInbox/LeiOverview.pm
+++ b/lib/PublicInbox/LeiOverview.pm
@@ -100,7 +100,7 @@ sub new {
                 return $lei->fail($@) if $@;
                 if ($opt->{mua} && $lei->{l2m}->lock_free) {
                         $lei->{early_mua} = 1;
-                        $opt->{alert} //= [ '-WINCH,-bell' ] if -t $lei->{1};
+                        $opt->{alert} //= [ ':WINCH,:bell' ] if -t $lei->{1};
                 }
         }
         $self;