wm: ircd

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turns out we need to filter empty lines

--- a/ircd.c

+++ b/ircd.c

@@ -977,6 +977,8 @@

 	Reply r;

 	cmd = strtok(msg, " :\r");

+	if(cmd == nil)

+		return 1; /* silently drop it */

 	if(strcmp(cmd, "PING") == 0){

 		r.argv[0] = strtok(0, " \r"); /* pong */