5374 add common objects to .gitignore

*** 9,18 ****
--- 9,30 ----
  .make.state*
  /log
  /packages
  /proto
  /webrev
+ obj32
+ obj64
+ debug32
+ debug64
+ *.o
+ *.so.?
+ *.diff
+ *.tmp
+ *.tmp.new
+ llib-*.ln
+ lint.out
+ /illumos.sh
  /usr/src/.build.tstamp
  /usr/src/ELF-data.*
  /usr/src/check-*.out
  /usr/src/clobber-*.out
  /usr/src/install-*.out