document what chdir() without an argument does (from Mark-Jason

Dominus <mjd@plover.com>)

p4raw-id: //depot/perl@4925

diff --git a/pod/perlfunc.pod b/pod/perlfunc.pod
index 905c444..060bb64 100644 (file)
--- a/pod/perlfunc.pod
+++ b/pod/perlfunc.pod
@@ -539,8 +539,10 @@ previous time C<caller> was called.
 =item chdir EXPR
 
 Changes the working directory to EXPR, if possible.  If EXPR is omitted,
-changes to the user's home directory.  Returns true upon success,
-false otherwise.  See the example under C<die>.
+changes to the directory specified by C<$ENV{HOME}>, if set; if not,
+changes to the directory specified by C<$ENV{LOGDIR}>.  If neither is
+set, C<chdir> does nothing.  It returns true upon success, false
+otherwise.  See the example under C<die>.
 
 =item chmod LIST