Bug. Both `linux` & `linuxmusl` are installed

[o-alexandrov]

Steps to reproduce:

• download latest release from this repo
• observe both linux & linuxmusl are installed

Shouldn't only linux be installed under @img?

[pH200]

Thank you for pointing out the issue. This is fixed by 5d980eb and the latest release.
Additionally, npm currently does not support specifying libc. I'll update the script once the following issues are addressed.
npm/cli#6914
lovell/sharp#3873

[Yashneel12345]

how to install