shebang is not defined in 11.4.x

[sridharmallela]

• Version : 11.4.x
• OS: Mac OS

With the latest version, using nyc throws an error for shebang, this is not happening with prior versions. The problem might be a typo with this commit . The code to reproduce this issue

Error

/git/nyc-spawn-wrap-issue-test/node_modules/nyc/node_modules/spawn-wrap/index.js:30
    shebang = '#!'
            ^
    ReferenceError: shebang is not defined
        at Object.<anonymous> (/git/nyc-spawn-wrap-issue-test/node_modules/nyc/node_modules/spawn-wrap/index.js:30:11)
        at Module._compile (module.js:635:30)
        at Object.Module._extensions..js (module.js:646:10)
        at Module.load (module.js:554:32)
        at tryModuleLoad (module.js:497:12)
        at Function.Module._load (module.js:489:3)
        at Module.require (module.js:579:17)
        at require (internal/module.js:11:18)
        at /.node-spawn-wrap-56825-9752b13600c7/node:167:17
        at Object.<anonymous> (/.node-spawn-wrap-56825-9752b13600c7/node:181:3)

Root Cause (may be an typo)

if (process.platform === 'os390')
  shebang = '#!/bin/env '
else
  shebang = '#!'

should be something like this

var  shebang =(process.platform === 'os390') ? '#!/bin/env ' : '#!'

I will submit a PR with the change.