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.
The prepare target didn't handle wiki.pl itself correctly. This has been
fixed. The command to add the git tag was changed from sed to perl, like
for the other targets. As emoji.pl and smiles.pl refer to permanent
anchors, the addition of the anchor parameter to AddModuleDescription
was obviously misguided and I reverted it.
This makes sure that "make prepare" works once again by allowing an
optional argument to AddModuleDescription with the tag.
AddModuleDescription now also takes an optional anchor which is used by
emoji.pl and smiles.pl.
This commit also updates all the translation files and makes sure that
they all use AddModuleDescription.
