heap-use-after-free in HdfsUtilTest CheckFilesystemsMatch

----------------------------------------------------------

85/113 Testing: hdfs-util-test
85/113 Test: hdfs-util-test
Command: "/data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/be/build/debug/util/hdfs-util-test" "-log_dir=/data/jenkins/workspace
/impala-asf-master-core-asan/repos/Impala/logs/be_tests"
Directory: /data/jenkins/workspace/impala-asf-master-core-asan/repos/Impala/be/src/util
"hdfs-util-test" start time: Nov 01 22:21 PDT
Output:
----------------------------------------------------------
seed = 1572672103
Note: Google Test filter = HdfsUtilTest.*
[==========] Running 2 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 2 tests from HdfsUtilTest
[ RUN      ] HdfsUtilTest.CheckFilesystemsMatch
19/11/01 22:21:43 INFO util.JvmPauseMonitor: Starting JVM pause monitor
[       OK ] HdfsUtilTest.CheckFilesystemsMatch (1012 ms)
[ RUN      ] HdfsUtilTest.CheckGetBaseName
[       OK ] HdfsUtilTest.CheckGetBaseName (0 ms)
[----------] 2 tests from HdfsUtilTest (1012 ms total)

[----------] Global test environment tear-down
[==========] 2 tests from 1 test case ran. (1013 ms total)
[  PASSED  ] 2 tests.

  YOU HAVE 1 DISABLED TEST

=================================================================
==87116==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000062878 at pc 0x000001b67bac bp 0x7fc96cf57ae0 sp 0x7fc96cf57290
READ of size 4 at 0x603000062878 thread T4
<end of output>
Test time =   2.64 sec
----------------------------------------------------------
Test Passed.
"hdfs-util-test" end time: Nov 01 22:21 PDT
"hdfs-util-test" time elapsed: 00:00:02
----------------------------------------------------------