While trying to benchmark big functions, values could be longer than
12 digits.  In this case all of them printed without spaces.  It's
hard ot read.

Fixes: 619c3a42dc1e ("lib: add a hardware performance counter access library")
Signed-off-by: Ilya Maximets <i.maxim...@ovn.org>
---
 lib/perf-counter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/perf-counter.c b/lib/perf-counter.c
index 402fabe17..e4eca58d0 100644
--- a/lib/perf-counter.c
+++ b/lib/perf-counter.c
@@ -111,7 +111,7 @@ perf_counter_to_ds(struct ds *ds, struct perf_counter *pfc)
         ratio = 0.0;
     }
 
-    ds_put_format(ds, "%-40s%12"PRIu64"%12"PRIu64"%12.1f\n",
+    ds_put_format(ds, "%-40s %12"PRIu64" %12"PRIu64" %12.1f\n",
                   pfc->name, pfc->n_events, pfc->total_count, ratio);
 }
 
-- 
2.25.4

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