Merge pull request #20 from russell/patch-2

Handle empty path map

Author: fmvilas

lib/beautifier.js

@@ -5,6 +5,7 @@ const md = require('markdown-it')();
 const curlGenerator = require('./curl-builder');
 
 const sharedStart = (array) => {
+  if (array.length == 0) { return ''; }
   const A = array.concat().sort();
   const a1 = A[0], a2 = A[A.length - 1], L = a1.length;
   let i = 0;