switched from t/f to T/f for printing messages

t and f look really similar, but T is a more visible difference
diff --git a/aos/build/queues/output/message_dec.rb b/aos/build/queues/output/message_dec.rb
index a643392..777e86b 100644
--- a/aos/build/queues/output/message_dec.rb
+++ b/aos/build/queues/output/message_dec.rb
@@ -35,7 +35,7 @@
 			format += ", "
 			format += elem.toPrintFormat()
 			if (elem.type == 'bool')
-				args.push("#{elem.name} ? 't' : 'f'")
+				args.push("#{elem.name} ? 'T' : 'f'")
 			else
 				args.push(elem.name)
 			end