fsOptions.homeDir is missing on ssh workspaces

node_modules/vfs-local/localfs.js

@@ -66,7 +66,7 @@ function logToFile(message){
 module.exports = function setup(fsOptions) {
     var pty;
     if (!fsOptions.nopty) {
-        [fsOptions.homeDir + "/.c9/node_modules/pty.js", "pty.js", "pty.nw.js"].some(function(p) {
+        [process.env.HOME + "/.c9/node_modules/pty.js", "pty.js", "pty.nw.js"].some(function(p) {
             try {
                 pty = require(p);
                 return true;