gmetad: pthread_t is an opaque type which could oveflow an int
gmetad: pthread_t is an opaque type which could oveflow an int

printing a pthread_t is not valid (as it is an opaque type), but at 
least this will avoid overflows in 64bit platforms where pointer is used


git-svn-id: 27e0aca8c7a52a9ae65dfba2e16879604119af8c@1262 93a4e39c-3214-0410-bb16-828d8e3bcd0f

fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia