pnpm install.sh should append newline at the end of the shell config file

[hirohe]

Verify latest release

• I verified that the issue exists in the latest pnpm release

pnpm version

No response

Which area(s) of pnpm are affected? (leave empty if unsure)

Operating System (Windows, MacOS, Linux)

Link to the code that reproduces this issue or a replay of the bug

https://github.com/pnpm/components/blob/main/os/env/path-extender-posix/path-extender-posix.ts#L194C23-L194C33

Reproduction steps

from install page guide, in the end of script, it will append PNPM_HOME related config in shell config file.

Describe the Bug

the problem is, according to POSIX standard (https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206). a newline should be at the end of file. otherwise, it will cause some problems like: later execute echo "export SOME_VAR=something" >> ~/.zshrc, it can not append in newline, result something like #pnpm endexport SOME_VAR=something

Expected Behavior

maybe functions in path-extender-posix.ts file should add newline \n at the end of config file.

related links

• https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
• https://stackoverflow.com/questions/729692/why-should-text-files-end-with-a-newline

Which Node.js version are you using?

16.14.0

Which operating systems have you used?

• macOS
• Windows
• Linux

If your OS is a Linux based, which one it is? (Include the version if relevant)

No response