Code review request: 8015274 and 8015276: policytool manual test problems

[Weijun Wang]

Please review the fix at

   http://cr.openjdk.java.net/~weijun/8015274/webrev.00/
It's for two bugs:

   8015274: TEST_BUG: Step2: After selecting 'View Warning Log', it is 
empty instead of FileNotFound.
   8015276: TEST_BUG: The 'ptool.test' can't be saved in the 'tmp' folder.

Thanks
Max