junit report does not include the failed assertion information

[IndraniBiswas]

see below example where junit report is missing "Expected "/abc.*Sig In/" but got: "abc.com Sign In"

from console logs :
✔ Expected element <#ap_email> to be visible in 15000ms - condition was met in 1642ms
✖ Testing if the URL match the regex "abc._Sig In". - expected "/abc._Sig In/" but got: abc.com Sign In
at Object.verifyTitle (/usr/local/lib/node_modules/nightwatch/lib/page-object/command-wrapper.js:103:25)
at Object.exports.command (/Users/indrani/uitest/src/WebPlayerTests/commands/doLogin.js:22:26)
at Object.F.command (/usr/local/lib/node_modules/nightwatch/lib/core/api.js:274:31)
at Object.commandFn (/usr/local/lib/node_modules/nightwatch/lib/core/api.js:287:24)
at AsyncTree.runCommand (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:159:30)
at AsyncTree.runChildNode (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:119:8)
at AsyncTree.walkDown (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:85:10)
at AsyncTree.traverse (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:73:10)
at queueRunner as run

FAILED: 1 assertions failed and 1 passed (5.438s)
Closing down...

---

TEST FAILURE: 1 assertions failed, 1 passed (5.649s)
✖ loginTest

• Verify login with valid existing user is successful
  Testing if the URL match the regex "Amazon._Sig In". - Expected "/abc._Sig In/" but got: "abc.com Sign In"

from junit xml report :
at Object.verifyTitle (/usr/local/lib/node_modules/nightwatch/lib/page-object/command-wrapper.js:103:25)
at Object.exports.command (/Users/indrani/uitest/src/WebPlayerTests/commands/doLogin.js:22:26)
at Object.F.command (/usr/local/lib/node_modules/nightwatch/lib/core/api.js:274:31)
at Object.commandFn (/usr/local/lib/node_modules/nightwatch/lib/core/api.js:287:24)
at AsyncTree.runCommand (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:159:30)
at AsyncTree.runChildNode (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:119:8)
at AsyncTree.walkDown (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:85:10)
at AsyncTree.traverse (/usr/local/lib/node_modules/nightwatch/lib/core/queue.js:73:10)
at queueRunner as run