[Fix] Make installation less restrictive when NVM_DIR is set
[Fix] Make installation less restrictive when NVM_DIR is set

ljharb/nvm,PeterDaveHelloKitchen/nvm,PeterDaveHello/nvm,evocateur/nvm,ljharb/nvm,evocateur/nvm,PeterDaveHelloKitchen/nvm,PeterDaveHello/nvm,creationix/nvm,creationix/nvm