Mention the chdir("")/chdir(undef) deprecation.

p4raw-id: //depot/perl@17633

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 3e92d3f..f66c126 100644 (file)
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -198,6 +198,13 @@ to escape the laboratory has been decommissioned.
 
 =item *
 
+Using chdir("") or chdir(undef) instead of explicit chdir() is
+doubtful.  A failure (think chdir(some_function()) can lead into
+unintended chdir() to the home directory, therefore this behaviour
+is deprecated.
+
+=item *
+
 The builtin dump() function has probably outlived most of its
 usefulness.  The core-dumping functionality will remain in future
 available as an explicit call to C<CORE::dump()>, but in future
@@ -2836,6 +2843,12 @@ gives a warning.
 
 =item *
 
+chdir("") and chdir(undef) now give a deprecation warning because they
+cause a possible unintentional chdir to the home directory.
+Say chdir() if you really mean that.
+
+=item *
+
 Two new debugging options have been added: if you have compiled your
 Perl with debugging, you can use the -DT [561] and -DR options to trace
 tokenising and to add reference counts to displaying variables,