5425 ld_unwind_populate_hdr likely misaccounts for 'P'

*** 632,642 ****
                                                   * Just need to extract the
                                                   * value to move on to the next
                                                   * field.
                                                   */
                                              (void) dwarf_ehe_extract(
!                                                 &data[off + ndx],
                                                  &ndx, ciePflag,
                                                  ofl->ofl_dehdr->e_ident, B_FALSE,
                                                  shdr->sh_addr, off + ndx, 0);
                                              break;
                                          case 'R':
--- 632,642 ----
                                                   * Just need to extract the
                                                   * value to move on to the next
                                                   * field.
                                                   */
                                              (void) dwarf_ehe_extract(
!                                                 &data[off],
                                                  &ndx, ciePflag,
                                                  ofl->ofl_dehdr->e_ident, B_FALSE,
                                                  shdr->sh_addr, off + ndx, 0);
                                              break;
                                          case 'R':