Needed for functions like cl.mesg which need to print a formatted
message. Previously these functions had to call string.format, and
would have to throw an error if it was not available.
stands for "string bounds copy". Some systems like macOS include their
very own version of strlcpy and testing for that would require some
bloat like gnu automake so I'm just gonna rename it to prevent any
future conflicts. I only test on Linux and OpenBSD anyway. ;)
