SF bug #827902: ctime is not creation time

Document the correct definition of os.path.getctime()

Doc/lib/libposixpath.tex

@@ -84,7 +84,8 @@ not exist or is inaccessible.
 \end{funcdesc}
 
 \begin{funcdesc}{getctime}{path}
-Return the time of creation of \var{path}.  The return
+Return the time of most recent content modification or metadata change
+for \var{path}.  The return
 value is a number giving the number of seconds since the epoch (see the 
 \refmodule{time} module).  Raise \exception{os.error} if the file does
 not exist or is inaccessible.