I think it's mostly a matter of taste whether one writes: The C<pass()> function marks a test as passed. ...or: The C<pass> function marks a test as passed. But regardless of whichever one prefers, consistency should be superior (-:
This is because the `V<` part of `ENV<PATH>` was being confused with a non-existent command sequence `V<`. Since the text should be printed out in a code block, escaping the internal pointy brackets solves the problem and makes the text only marginally more difficult (in the POD) to read. An alternative would have been to use `Z<>`, however this is less well known and harder to read in the plain text.