Advertise znc.in/self-message

https://defs.ircdocs.horse/info/selfmessages.html

This fixes private message routing in Textual, as it only has correct
behaviour if it sees this CAP.

1 files changed, 1 insertions, 0 deletions

diff --git a/client.c b/client.c
index 6bc53f4..23cde36 100644
--- a/client.c
+++ b/client.c
@@ -47,6 +47,7 @@ enum Cap clientCaps = 0
 	| CapPassive
 	| CapReadMarker
 	| CapSTS
+	| CapSelfMessage
 	| CapServerTime;
 
 char *clientOrigin;