Error makes exit code meaningful
Inspired from sysexits.h and created it.
The following are quoted contents from manpage of the sysexits.h.
According to style(9), it is not a good practice to call exit(3) with arbitrary values to indicate a failure condition when ending a program. Instead, the pre-defined exit codes from sysexits should be used, so the caller of the process can get a rough estimation about the failure class without looking up the source code.
You can read example.
And if you want to know more details, please read here.
go get github.com/Code-Hex/exit
Welcome!!
I'm waiting for pull requests or reporting issues.