CLI crashes if no arg[0]

[khallmark]

Reproduction

run npx remix or npx exec remix on a fresh install with no arguments. Pretty clear that it's trying to call startsWith on an undefined object. No reproduction steps needed.

TypeError: Cannot read properties of undefined (reading 'startsWith')
    at Object.run (/Users/khallmark/Desktop/Code/taskifier/node_modules/@remix-run/dev/dist/cli/run.js:171:17)
    at Object.<anonymous> (/Users/khallmark/Desktop/Code/taskifier/node_modules/@remix-run/dev/dist/cli.js:16:11)
    at Module._compile (node:internal/modules/cjs/loader:1546:14)
    at Object..js (node:internal/modules/cjs/loader:1689:10)
    at Module.load (node:internal/modules/cjs/loader:1318:32)
    at Function._load (node:internal/modules/cjs/loader:1128:12)
    at TracingChannel.traceSync (node:diagnostics_channel:315:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:218:24)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:170:5)
    at node:internal/main/run_main_module:36:49

System Info

System:
    OS: macOS 15.2
    CPU: (12) arm64 Apple M2 Max
    Memory: 7.75 GB / 64.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.11.0 - ~/.nvm/versions/node/v22.11.0/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 10.9.0 - ~/.nvm/versions/node/v22.11.0/bin/npm
    Watchman: 2024.11.11.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 131.0.6778.69
    Safari: 18.2
  npmPackages:
    @remix-run/css-bundle: ^2.14.0 => 2.14.0 
    @remix-run/dev: ^2.14.0 => 2.14.0 
    @remix-run/express: ^2.14.0 => 2.14.0 
    @remix-run/node: ^2.14.0 => 2.14.0 
    @remix-run/react: ^2.14.0 => 2.14.0 
    @remix-run/serve: ^2.14.0 => 2.14.0 
    vite: ^5.4.11 => 5.4.11

Used Package Manager

npm

Expected Behavior

No crash when argv[0] is not sent. Shows help.

Actual Behavior

Crashes when no argv[0] sent