Nimsuggest always crushes on My Mac

[wangzhenzhe]

Sorry for asking. I have noticed that the reason is how I write the lines for 
`import`. I write the import before like:
    
    
    import
      package_a,
      package_b
    
    
    Run

It worked with `nimsuggest` before, but now it crushes. I have to write it as
    
    
    import
      [package_a,
      package_b]
    
    
    Run

Then it works with `nimsuggest`.