extensions/git/src/git.ts/cpErrorHandler
function cpErrorHandler(cb: (reason?: any) => void): (reason?: any) => void {
	return err => {
		if (/ENOENT/.test(err.message)) {
			err = new GitError({
				error: err,
				message: 'Failed to execute git (ENOENT)',
				gitErrorCode: GitErrorCodes.NotAGitRepository
			});
		}

		cb(err);
	};
}