[request-sponsor] Patch for "False positive jump table detection" bug

[James McIlree]

        I believe this request should be routed to Adam Leventhal.

        I do not have a bug number, as I just submitted the bug report.

m206-90:~/Projects/solaris/b50/usr/src/lib/libdtrace/i386> diff  
dt_isadep.c dt_isadep-fixed.c
451c451,452
<    if (ioctl(dis->dtp->dt_ftfd, FASTTRAPIOC_GETINSTR, &instr) == 0)
---
 >    if (ioctl(dis->dtp->dt_ftfd, FASTTRAPIOC_GETINSTR, &instr) == 0) {
 >            *dis->instr = instr.ftiq_instr;
452a454
 >    }