Build fail when RBENV_ROOT contains a space.

[nix6839]

Steps to reproduce the behavior

Set RBENV_ROOT to a path that contains spaces.

echo $RBENV_ROOT
/Users/nix6839/Library/Application Support/rbenv

And run:

rbenv install 2.7.5

Logs

rbenv install 2.7.5

To follow progress, use 'tail -f /var/folders/2f/mm340dls7s96pgy8dh6k3c2w0000gn/T/ruby-build.20221025160537.34538.log' or pass --verbose
Downloading openssl-1.1.1q.tar.gz...
-> https://dqw8nmjcqpjn7.cloudfront.net/d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca
Installing openssl-1.1.1q...
patching file 'test/v3ext.c'

BUILD FAILED (macOS 13.0 using ruby-build 20221025)

Inspect or clean up the working tree at /var/folders/2f/mm340dls7s96pgy8dh6k3c2w0000gn/T/ruby-build.20221025160537.34538.zldqeT
Results logged to /var/folders/2f/mm340dls7s96pgy8dh6k3c2w0000gn/T/ruby-build.20221025160537.34538.log

Last 10 log lines:
clang: error: no such file or directory: 'Support/rbenv/versions/2.7.5/include'
make[1]: *** [apps/opt.o] Error 1
make[1]: *** [apps/app_rand.o] Error 1
clang: error: no such file or directory: 'Support/rbenv/versions/2.7.5/include'
clang: error: no such file or directory: 'Support/rbenv/versions/2.7.5/include'
make[1]: *** [apps/s_socket.o] Error 1
make[1]: *** [crypto/aes/aes_cbc.o] Error 1
clang: error: no such file or directory: 'Support/rbenv/versions/2.7.5/include'
make[1]: *** [crypto/aes/aes_cfb.o] Error 1
make: *** [all] Error 2