Double slashed comments truncated

[itsezc]

BUG

let something = 'foo';
// Something does this

This is formatted to:

let something = 'foo' /* Something does thi*/;

The comments are truncated with the last letter missing.

[davesnx]

This looks fixed with 3.8.1

echo 'let something = "foo";
// Something does this' | refmt

let something = "foo";
// Something does this