1.1 --- a/reference.txt	Tue Jun 23 02:07:26 2015 +0200
     1.2 +++ b/reference.txt	Tue Jun 23 02:10:59 2015 +0200
     1.3 @@ -318,7 +318,8 @@
     1.4  which corresponds to the respective positive signal number.
     1.5  
     1.6  The method :wait_nb() is the same as :wait(), except that it does not block but
     1.7 -returns nil if the child process has not terminated yet.
     1.8 +returns false (plus a notice as second return value) if the child process has
     1.9 +not terminated yet.
    1.10  
    1.11  The method :wait_call() is the same as :wait() but calls waitfunc() (in an
    1.12  infinite loop) as long as the process is still running.
    1.13 @@ -381,9 +382,9 @@
    1.14  which does evaluate to true. If a set is nil, it is treated as being empty.
    1.15  
    1.16  Returns true when at least one file descriptor or handle is ready for reading
    1.17 -or writing respectively. Returns false (as first return value) plus a status
    1.18 -message (as second return value) in case of timeout or when a signal was
    1.19 -received.
    1.20 +or writing respectively. Returns false (plus a notice as second return value)
    1.21 +in case of timeout. Returns nil (plus a notice as second return value) if a
    1.22 +signal was received during waiting.
    1.23  
    1.24  
    1.25  ### moonbridge_io.tcpconnect(hostname, port)