process: resize stderr on SIGWINCH

Fixes: https://github.com/nodejs/io.js/issues/2219
PR-URL: https://github.com/nodejs/io.js/pull/2231
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>

src/node.js

@@ -637,6 +637,11 @@
         er = er || new Error('process.stderr cannot be closed.');
         stderr.emit('error', er);
       };
+      if (stderr.isTTY) {
+        process.on('SIGWINCH', function() {
+          stderr._refreshSize();
+        });
+      }
       return stderr;
     });