• VSCode Version: 1.3.0
• OS Version: Win10

Steps to Reproduce:
File contents:

let fs = require('fs');

1. Start Global Search&Replace CTRL+SHIFT+H
2. For the search term use let\s+(\w+)\s*=\s*require\s*\(\s*['"]([\w\.\-/]+)\s*['"]\s*\)\s*;
3. For the replace term use import * as $1 from '$2';

Issue:

When replacing, the file looks like this:

import * as $1 from '$2';

Expected

import * as fs from 'fs';

Note: This works using Local Search&Replace (CTRL+H).