Fixed outProtocol variable name

(cherry picked from commit 41949cb76e2462e3cac60a2dd491dd200c02c3e5)

internal/tengo/outmessage.tengo

@@ -13,7 +13,7 @@ text := import("text")
 // start - strip irc colors 
 // if we're not sending to an irc bridge we strip the IRC colors
 if inProtocol == "irc" {
-    if OutProtocol != "irc" {
+    if outProtocol != "irc" {
     re := text.re_compile(`\x03(?:\d{1,2}(?:,\d{1,2})?)?|[[:cntrl:]]`)
     msgText=re.replace(msgText,"")
     }