Valgrind warnings around Galera SST

$ perl mtr galera.galera_insert_multi --valgrind

...

galera.galera_insert_multi 'innodb_plugin' [ fail ]  Found warnings/errors in server log file!

        Test ended at 2016-09-04 14:32:59

line

==2082== Thread 8:

==2082== Conditional jump or move depends on uninitialised value(s)

==2082==    at 0x4C2E0F8: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==2082==    by 0x78C132: sst_scan_uuid_seqno(char const*, wsrep_uuid*, long*) (wsrep_sst.cc:342)

==2082==    by 0x78C979: sst_joiner_thread(void*) (wsrep_sst.cc:485)

==2082==    by 0x5F09183: start_thread (pthread_create.c:312)

==2082==    by 0x682337C: clone (clone.S:111)

==2082== Conditional jump or move depends on uninitialised value(s)

==2082==    at 0x4C31A06: rawmemchr (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==2082==    by 0x67A5FC1: _IO_str_init_static_internal (strops.c:44)

==2082==    by 0x6787476: __isoc99_vsscanf (isoc99_vsscanf.c:41)

==2082==    by 0x6787416: __isoc99_sscanf (isoc99_sscanf.c:31)

==2082==    by 0xF074F9: wsrep_uuid_scan (wsrep_uuid.c:50)

==2082==    by 0x78C14E: sst_scan_uuid_seqno(char const*, wsrep_uuid*, long*) (wsrep_sst.cc:342)

==2082==    by 0x78C979: sst_joiner_thread(void*) (wsrep_sst.cc:485)

==2082==    by 0x5F09183: start_thread (pthread_create.c:312)

==2082==    by 0x682337C: clone (clone.S:111)

==2082== Conditional jump or move depends on uninitialised value(s)

==2082==    at 0x4C2E0F8: strlen (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==2082==    by 0x78C17B: sst_scan_uuid_seqno(char const*, wsrep_uuid*, long*) (wsrep_sst.cc:344)

==2082==    by 0x78C979: sst_joiner_thread(void*) (wsrep_sst.cc:485)

==2082==    by 0x5F09183: start_thread (pthread_create.c:312)

==2082==    by 0x682337C: clone (clone.S:111)