make dumping vcpu info look better

and more consistent. In fact, before this changes, it looks
like this:

 (XEN) VCPU information and callbacks for domain 0:
 (XEN)     VCPU0: CPU4 [has=F] poll=0 upcall_pend = 00, upcall_mask = 00 dirty_cpus={4} cpu_affinity={0-15}
 (XEN) cpu_soft_affinity={0-15}
 (XEN)     pause_count=0 pause_flags=1
 (XEN)     No periodic timer

After, it looks like this:

 (XEN) VCPU information and callbacks for domain 0:
 (XEN)     VCPU0: CPU4 [has=F] poll=0 upcall_pend=00 upcall_mask=00 dirty_cpus={4}
 (XEN)     cpu_hard_affinity={0-15} cpu_soft_affinity={0-15}
 (XEN)     pause_count=0 pause_flags=1
 (XEN)     No periodic timer

So, consistently _not_ put space between fields and '=',
and consistently _not_ use ',' as separator. Also, put the
info about affinity on the same, properly indented.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com>
Reviewed-by: Meng Xu <mengxu@cis.upenn.edu>

xen/common/keyhandler.c

@@ -294,15 +294,15 @@ static void dump_domains(unsigned char key)
                 process_pending_softirqs();
 
             printk("    VCPU%d: CPU%d [has=%c] poll=%d "
-                   "upcall_pend = %02x, upcall_mask = %02x ",
+                   "upcall_pend=%02x upcall_mask=%02x ",
                    v->vcpu_id, v->processor,
                    v->is_running ? 'T':'F', v->poll_evtchn,
                    vcpu_info(v, evtchn_upcall_pending),
                    !vcpu_event_delivery_is_enabled(v));
             cpuset_print(tmpstr, sizeof(tmpstr), v->vcpu_dirty_cpumask);
-            printk("dirty_cpus=%s ", tmpstr);
+            printk("dirty_cpus=%s\n", tmpstr);
             cpuset_print(tmpstr, sizeof(tmpstr), v->cpu_hard_affinity);
-            printk("cpu_affinity=%s\n", tmpstr);
+            printk("    cpu_hard_affinity=%s ", tmpstr);
             cpuset_print(tmpstr, sizeof(tmpstr), v->cpu_soft_affinity);
             printk("cpu_soft_affinity=%s\n", tmpstr);
             printk("    pause_count=%d pause_flags=%lx\n",