[ic] perl-5.12.2 -> 5.12.3 = deprecated warning

[Grant]

I just upgraded from perl-5.12.2 to 5.12.3 and I now get an email like
this every time an IC job is dispatched, although the job executes
fine:

defined(%hash) is deprecated at
/usr/lib64/perl5/vendor_perl/5.12.3/x86_64-linux/Safe/Hole.pm line
106.
	(Maybe you should just omit the defined()?)

Is this an IC issue or one with Safe::Hole?

- Grant