out of bounds heap read in r_str_glob

[hannob]

This script causes a heap oob:
https://crashes.fuzzing-project.org/radare2-oob-heap-read-r_str_glob
Contains "l0 *00" string.

Test: radare2 -q -i [script] /dev/null
Found with american fuzzy lop.

Address Sanitizer trace:

==9040==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200001674f at pc 0x7fc9be62d712 bp 0x7ffcae1f0c20 sp 0x7ffcae1f0c10
READ of size 2 at 0x60200001674f thread T0
    #0 0x7fc9be62d711 in r_str_glob /f/radare2/radare2/libr/util/str.c:1149
    #1 0x7fc9c39da046 in r_core_syscmd_ls /f/radare2/radare2/libr/core/syscmd.c:162
    #2 0x7fc9c3874383 in cmd_ls /f/radare2/radare2/libr/core/cmd.c:382
    #3 0x7fc9c395973a in r_core_cmd_subst_i /f/radare2/radare2/libr/core/cmd.c:1590
    #4 0x7fc9c38ba8c4 in r_core_cmd_subst /f/radare2/radare2/libr/core/cmd.c:1081
    #5 0x7fc9c38bbaa3 in r_core_cmd /f/radare2/radare2/libr/core/cmd.c:1938
    #6 0x7fc9c38be8f4 in r_core_cmd_lines /f/radare2/radare2/libr/core/cmd.c:1989
    #7 0x7fc9c38beb64 in r_core_cmd_file /f/radare2/radare2/libr/core/cmd.c:2001
    #8 0x7fc9c38c1ba3 in r_core_run_script /f/radare2/radare2/libr/core/cmd.c:373
    #9 0x405572 in main /f/radare2/radare2/binr/radare2/radare2.c:729
    #10 0x7fc9bde22f9f in __libc_start_main (/lib64/libc.so.6+0x1ff9f)
    #11 0x40a333 (/mnt/ram/radare2/radare2+0x40a333)

0x60200001674f is located 1 bytes to the left of 2-byte region [0x602000016750,0x602000016752)
allocated by thread T0 here:
    #0 0x7fc9c3fec6f7 in malloc (/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/libasan.so.1+0x576f7)
    #1 0x7fc9bde84789 in strdup (/lib64/libc.so.6+0x81789)

SUMMARY: AddressSanitizer: heap-buffer-overflow /f/radare2/radare2/libr/util/str.c:1149 r_str_glob
Shadow bytes around the buggy address:
  0x0c047fffac90: fa fa 04 fa fa fa 00 03 fa fa 00 fa fa fa 06 fa
  0x0c047fffaca0: fa fa 00 00 fa fa 00 06 fa fa 00 05 fa fa 00 03
  0x0c047fffacb0: fa fa 07 fa fa fa 06 fa fa fa 00 fa fa fa 00 02
  0x0c047fffacc0: fa fa 03 fa fa fa 00 fa fa fa 03 fa fa fa 00 02
  0x0c047fffacd0: fa fa 00 04 fa fa 00 02 fa fa 04 fa fa fa 02 fa
=>0x0c047ffface0: fa fa 04 fa fa fa 03 fa fa[fa]02 fa fa fa 04 fa
  0x0c047fffacf0: fa fa 01 fa fa fa 07 fa fa fa 07 fa fa fa 07 fa
  0x0c047fffad00: fa fa fd fa fa fa fd fd fa fa 06 fa fa fa fd fa
  0x0c047fffad10: fa fa 05 fa fa fa fd fa fa fa 06 fa fa fa fd fa
  0x0c047fffad20: fa fa 06 fa fa fa 03 fa fa fa fd fa fa fa 04 fa
  0x0c047fffad30: fa fa fd fa fa fa fd fa fa fa 04 fa fa fa fd fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Contiguous container OOB:fc
  ASan internal:           fe
==9040==ABORTING