Bug [ 1190563 ] os.waitpid docs don't specify return value for WNOHANG

diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
index 7611e5b627320927826abd0c29396a2450fb3b65..6bf22d8149fc3c64ef14b01771ff1d9e0d64b84e 100644 (file)
--- a/Doc/lib/libos.tex
+++ b/Doc/lib/libos.tex
@@ -1680,8 +1680,9 @@ return suitable process handles.
 \end{funcdesc}
 
 \begin{datadesc}{WNOHANG}
-The option for \function{waitpid()} to avoid hanging if no child
-process status is available immediately.
+The option for \function{waitpid()} to return immediately if no child
+process status is available immediately. The function returns
+\code{(0, 0)} in this case.
 Availability: Macintosh, \UNIX.
 \end{datadesc}