added check for linenumber/filename printing to avoid exceptions when us...

[gimre]

...ing node with --stack_trace_limit < 3

[bishtawi]

This looks like it might also help address (but not fully resolve) issue #14

@tblobaum thoughts?

[OmgImAlexis]

@tblobaum is this going to be looked at or is the repo abandoned?

[tblobaum]

I havent completely abandoned the repo. Ill see if i can test this pr soon @OmgImAlexis