Fix vfs-child/parent error handling

Fixes crash when child prints to stdout/stderr,
triggering unhandled EPIPE error

node_modules/vfs-child/parent.js

@@ -23,17 +23,22 @@ function Parent(fsOptions) {
     // Override Consumer's connect since the transport logic is internal to this module
     this.connect = connect.bind(this);
     function connect(callback) {
-        child = spawn(nodeBin[0], args, options);
+        try {
+            child = spawn(nodeBin[0], args, options).on("error", tryNext);
+        }
+        catch (e) {
+            return tryNext(e);
+        }
         child.stdin.readable = true;
         Consumer.prototype.connect.call(this, [child.stdout, child.stdin], tryNext);
         child.on("exit", disconnect);
-        child.on("error", tryNext);
         child.stdin.resume();
         var _self = this;
         // try all possible locations of node before giving up
         function tryNext(err, vfs) {
             if (!child) return;
             child.removeListener("error", tryNext);
+            child.on("error", function ignore() {});
             if (err && err.code == "ENOENT" && nodeBin.length > 1) {
                 child = null;
                 nodeBin.shift();