`markdown-rel-links` does not correctly report line numbers

In https://github.com/ethereum/EIPs/pull/5593 (specifically [here](https://github.com/ethereum/EIPs/blob/4490e7b64b2a2c1f9d02e79b64e7cecc36672b7d/EIPS/eip-5593.md?plain=1#L47)), `eipw` incorrectly reports the source of the error as the last line of the file. I suspect this has something to do with comrak's autolink feature.