assertQueryContentContains searching through all nodes found
Merge branch 'master', remote-tracking branch 'upstream/master'
Added new test case for assertQueryContentContains
Merge pull request #5212 from EpeeCheeze/master

assertQueryContentContains searching through all nodes found
[#5212] incorporate feedback

- Incorporated feedback from @Maks3w
- ensured all multi-line sprint() calls had one argument per line
Merge branch 'hotfix/5212'

Close #5212