UJES-Client get log exception

[peacewong]

Describe the bug
When using UJES-Client to get logs, it found a failure. I see that the request path in the JobLogAction class is written as a progress and should be modified to log.

To Reproduce
The bug happens here:

private var execId: String = _
 override def suffixURLs: Array[String] = Array("entrance", execId, "progress")---should be modified to log.