Extend ktrace/kdump output

Hi.
I've been taking a look at ktrace and kdump in order to get (1) familiar with the sources and (2) to finally try to give back something to the community.

So far from what I've seen, and after reading this thread http://lists.freebsd.org/pipermail/freebsd-arch/2006-April/005107.html it seems that most of those points got done.

To warm up I changed the output of the stat structure in order to provide me with the device name (something I actually find useful for me sometimes)

Instead of:
 22596 cat      STRU  struct stat {dev=89, ino=3320836, mode=-r--r--r-- , nlink=1, uid=0, gid=0, atime=1284725358, stime=1284485510, ctime=1284485510, birthtime=1284485509, size=1172220, blksize=16384, blocks=2336, flags=0x20000 }

I get this now (including major and minor):
 22596 cat      STRU  struct stat {dev=<id=89:M=0:m=89> (/dev/ad4s1a), ino=3320836, mode=-r--r--r-- , nlink=1, uid=0, gid=0, atime=1284725358, stime=1284485510, ctime=1284485510, birthtime=1284485509, size=1172220, blksize=16384, blocks=2336, flags=0x20000 }

I wouldn't mind having someone help me whenever and if I get stuck on the technical side (*wink* Alexander Leidinger *wink*) and also to give me more insight on what the road to help in this should be.

P.S.: I'm still going through "man style" hence no patch attached. If anyone finds this one useful, I'll reply with the patch though. 

--
Norberto