Fixed UserManagerService / UserSystemPackageInstaller dump() methods

The latter was creating a IndentingPrintWriter, which in turn would
close the underlying PrintWriter used by the former; hence, nothing
else could be dumped() afterwards.

Test: manual verification
Fixes: 163423525

Change-Id: Ie310f0dac2db9ba0af85ae484fcb30511b5a44b4
2 files changed