Earlier quoted context omitted.
Just replying to point out that the grayed out comment above is the correct one. There is ugliness in coreutils, but it mature, functional, proven ugliness. A lot of it is even there for a reason. It's not difficult to make an elegant toy in isolation.
checkout the different implementations of echo across various operating systems: " https://gist.github.com/dchest/1091803" .
There is an RFC standard way of quoting URLs and addresses, namely angle brackets. HN doesn't implement it, though:
" rel="nofollow">https://gist.github.com/dchest/109180>.
See? The closing > is included in the URL, stupidly.
The convention first appeared in [https://www.ietf.org/rfc/rfc1738.txt] in 1995, with Tim Berners Lee the top author.