geth.patch

diff --git a/bin/geth.p6 b/bin/geth.p6
index 90dcda4..c1e46dc 100755
--- a/bin/geth.p6
+++ b/bin/geth.p6
@@ -11,7 +11,7 @@ class Geth::Plugin::Info {
     multi method irc-to-me ($ where /^ \s* ['help' | 'source' ] '?'? \s* $/) {
         "Source at https://github.com/perl6/geth "
         ~ "To add repo, add an 'application/json' webhook on GitHub "
-        ~ "pointing it to http://hack.p6c.org:8888/?chan=#perl6 and choose "
+        ~ "pointing it to http://hack.p6c.org:8888/?chan=%23perl6,%23perl6-dev and choose "
         ~ "'Send me everything' for events to send | use `ver URL to commit` "
         ~ "to fetch version bump changes";
     }
diff --git a/lib/Geth/GitHub/Hooks.pm6 b/lib/Geth/GitHub/Hooks.pm6
index 92a4d13..ad580e8 100644
--- a/lib/Geth/GitHub/Hooks.pm6
+++ b/lib/Geth/GitHub/Hooks.pm6
@@ -155,7 +155,7 @@ sub make-event ($e, :$event, :$query) {
             say "Got `$event` event";
             dd [$query, $e];
             say "-" x 100;
-            return;
+            return Empty;
         }
     }
 }
diff --git a/lib/Geth/Plugin/GitHub.pm6 b/lib/Geth/Plugin/GitHub.pm6
index bec54dc..ba10114 100644
--- a/lib/Geth/Plugin/GitHub.pm6
+++ b/lib/Geth/Plugin/GitHub.pm6
@@ -48,6 +48,12 @@ method irc-started {
 
             dd [ 'chans', @chans, @bot-chans, @chans ⊆ @bot-chans ];
 
+            if @chans.elems == 0 || @chans.elems == 1 && @chans[0] eq "" {
+                note "reporting that this repo didn't have a proper channel in its request";
+                dd $e;
+                throttle { $.irc.send: where => "#perl6-dev", text => "$e.repo() must have its webhook fixed; no channels were sent by github, please check if # needs to be replaced by %23" }
+            }
+
             if keys @chans ∩ @bot-chans -> @send-to-chans {
                 my $text = make-text $e or next;
                 for @send-to-chans -> $where {