Let B::Deparse know about the [perl #20444] fix.

Let B::Deparse know about the [perl #20444] fix.

With the previous commit:

$ ./perl -Ilib -MO=Deparse -e'"foo" =~ (1?/foo/:/bar/)'
'foo' =~ /foo/;
-e syntax OK

So the Deparse output no longer matches what perl does. With
this commit:

$ ./perl -Ilib -MO=Deparse -e'"foo" =~ (1?/foo/:/bar/)'
'foo' =~ ($_ =~ /foo/);
-e syntax OK