proc: Document reason behind weird division.

Maybe need to relook at this at a later date...for now it's okay

src/bin/system/process.c

@@ -877,6 +877,7 @@ _proc_thread_info(struct kinfo_proc *kp, Eina_Bool is_thread)
 
    p->cpu_time = (usage->ru_utime.tv_sec * 1000000) + usage->ru_utime.tv_usec +
        (usage->ru_stime.tv_sec * 1000000) + usage->ru_stime.tv_usec;
+   // XXX: See kern.sched.idlespins
    p->cpu_time /= 10000;
    p->state = _process_state_name(kp->ki_stat);
    p->mem_virt = kp->ki_size;

src/bin/system/process.h

@@ -33,7 +33,7 @@ typedef struct _Proc_Info
    int8_t      priority;
    int         cpu_id;
    int32_t     numthreads;
-   long        cpu_time;
+   int64_t     cpu_time;
    double      cpu_usage;
 
    uint64_t    mem_size;