extensions/git/src/git.ts/findGitWin32InPath
function findGitWin32InPath(onValidate: (path: string) => boolean): Promise<IGit> {
	const whichPromise = new Promise<string>((c, e) => which('git.exe', (err, path) => err ? e(err) : c(path)));
	return whichPromise.then(path => findSpecificGit(path, onValidate));
}