Test broken for node v0.10.x on windows.

[Rohithzr]

Issue created for reference only

Node.js v0.10 doesn't have a child_process.execFileSync method: https://nodejs.org/docs/latest-v0.10.x/api/child_process.html

@richardlau It looks like #1203 has inadvertently broken this test on v0.10 (prior to that PR the test used execFile which does exist in v0.10).

see discussions on #1492
fixed by #1492

node - v0.10.x
npm - v2.51.x

Details regarding the fix

test/processExecSync.js adds a function that will emulate the child_process.execSync for legacy node <= 0.10.x

the function runs the given command, saves the [stdout, stderr] and the command status in a temp directory then reads the files to get the output of the said commands.

the function deletes the temp files and folders after the task is complete.

[Rohithzr]

fixed by #1492