gitignore: add src/.dirstamp
gitignore: add src/.dirstamp

Signed-off-by: Greg Farnum <ddf08f52dfbf554083d43d4688a3a05bda539ab6@redhat.com>

ceph/gf-complete,ceph/gf-complete,ceph/gf-complete,cedricde/gf-complete,zzxuanyuan/gf-complete,cedricde/gf-complete,zzxuanyuan/gf-complete