Add "version added" for getpgid

nnorwitz · nnorwitz · commit cc5c6947a647 · 2002-06-13T21:19:25.000Z
diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
@@ -148,6 +148,7 @@ \subsection{Process Parameters \label{os-procinfo}}
 Return the process group id of the process with process id \var{pid}.
 If \var{pid} is 0, the process group id of the current process is
 returned. Availability: \UNIX.
+\versionadded{2.3}
 \end{funcdesc}
 
 \begin{funcdesc}{getpgrp}{}
