False positive in Style/TrailingUnderscoreVariable cop

[Drenmi]

When this cop encounters destructuring code like:

_, *rest, _ = *arr

it incorrectly marks the trailing _ as an offense, but this is needed to indicate how many tail elements we want to drop when destructuring.

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Expected behavior

RuboCop does not register an offense.

Actual behavior

C: Style/TrailingUnderscoreVariable: Do not use trailing _s in parallel assignment. Prefer _, *rest, = *arr.
_, *rest, _ = *arr
          ^^

Steps to reproduce the problem

Run bundle exec rubocop --only Style/TrailingUnderscoreVariable, on:

_, *rest, _ = *arr

RuboCop version

Include the output of rubocop -V:

$ rubocop -V
0.42.0 (using Parser 2.3.1.2, running on ruby 2.3.0 x86_64-darwin15)