perf probe: Misleading error message using function globbing

[Arnaldo Carvalho de Melo]

Hi Masami,

	Could you please improve this?

  [root@zoo ~]# perf probe -F do_f*
  do_fb_ioctl
  do_fbcon_takeover
  do_file_open_root
  do_filp_open
  do_flush_tlb_all
  do_free_callbacks
  do_free_init
  do_fsync
  do_futex
  [root@zoo ~]# perf probe -F do_fo*
  no symbols found in [kernel.kallsyms], maybe install a debug package?
  Failed to load symbols in kernel
  [root@zoo ~]# 

I.e. it _finds_ the symbol table, its just that the globbing failed, the
message should be improved, otherwise the user would start looking why
the debuginfo, that _is_ in place, is not being enough, I did :-)

- Arnaldo
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