Comment 4 for bug 1472115

#0 0x00007fab78969e10 in conf_lookup_key ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#1 0x00007fab78969ece in conf_lookup ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#2 0x00007fab7896b246 in conf_get_yesno ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#3 0x00007fab7896bc95 in defaults_get_browse_mode ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#4 0x00007fab78963660 in local_init_vars ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#5 0x00007fab78963a43 in master_parse_entry ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#6 0x00007fab7895b7b5 in lookup_read_master ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#7 0x00007fab7bfb6371 in do_read_master ()
#8 0x00007fab7bfb6861 in lookup_nss_read_master ()
#9 0x00007fab780afa63 in include_file ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_dir.so
#10 0x00007fab780afc92 in lookup_read_master ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_dir.so
#11 0x00007fab7bfb6371 in do_read_master ()
#12 0x00007fab7bfb6b99 in lookup_nss_read_master ()
#13 0x00007fab7895b61e in lookup_read_master ()
   from /usr/lib/x86_64-linux-gnu/autofs/lookup_file.so
#14 0x00007fab7bfb6371 in do_read_master ()
#15 0x00007fab7bfb6861 in lookup_nss_read_master ()
#16 0x00007fab7bfcf797 in master_read_master ()
#17 0x00007fab7bfaa579 in main ()