sub ParseData is fully backwards compatible. If some module runs it in list
context, then it will get listified hash like previously. New code should
always run it in scalar context though (everything in our code base
was changed according to that).
sub GetTextRevision is not backwards compatible (don't let “wantarray” usage
to confuse you). Most modules do not touch that subroutine, so we are probably
fine (modules from our git repo that do use were changed accordingly).
“EncodePage(%$page)” looks wrong. It seems like we should change it to accept
hash ref.
This command was used:
find . -type f -print0 | xargs -0 sed -i 's/return undef/return/g'
The idea behind this commit is described on http://oddmuse.org/wiki/Refactoring page.
In short: 'return undef' returns (undef) in list context (a list with one element),
which is wrong.
Replaced the $Id$ tags in $WikiDescription for all the modules and wiki.pl itself with a link to the source and an appropriate wiki page, if possible. This is shown in action=version and should help users figure out what another wiki has installed.
