[shellcheck] remove use of `expr`
[shellcheck] remove use of `expr`
PeterDaveHello/nvm,evocateur/nvm,edwmurph/nvm,evocateur/nvm,PeterDaveHello/nvm,creationix/nvm,lukechilds/nvm,ljharb/nvm,ljharb/nvm,edwmurph/nvm,PeterDaveHelloKitchen/nvm,creationix/nvm,lukechilds/nvm,PeterDaveHelloKitchen/nvm