<p dir="auto">There are a number of error messages that have two almost identical variants. One with a colon at the end, and one with a period. The idea is that the error should end in a colon if has an elaboration, and a period if not. This is not giving us enough benefit to justify the existence of these variants. So we should remove the colon variants.</p>
<p dir="auto">We decided that the colons in the chained error messages makes the code harder to read, and does not add enough value for it to be worth it. But let's wait until the parity pass is finished.</p>