teleimg: fix RE for IRC names

Change-Id: Ief1bda751553361bcbbd18031205ae70804f1dd4
diff --git a/personal/q3k/lelegram/irc/conn.go b/personal/q3k/lelegram/irc/conn.go
index 9f1f4ef..5ec3c62 100644
--- a/personal/q3k/lelegram/irc/conn.go
+++ b/personal/q3k/lelegram/irc/conn.go
@@ -53,7 +53,7 @@
 	connected int64
 }
 
-var reIRCNick = regexp.MustCompile(`[^a-z0-09]`)
+var reIRCNick = regexp.MustCompile(`[^A-Za-z0-09]`)
 
 // Say is called by the Manager when a message should be sent out by the
 // connection.