perf hists: Don't consider filtered entries when calculating column widths

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-rf01wktu1e3f3az32nry86vu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/hist.c

@@ -725,7 +725,8 @@ void hists__output_recalc_col_len(struct hists *hists, int max_rows)
 
 	while (next && row++ < max_rows) {
 		n = rb_entry(next, struct hist_entry, rb_node);
-		hists__calc_col_len(hists, n);
+		if (!n->filtered)
+			hists__calc_col_len(hists, n);
 		next = rb_next(&n->rb_node);
 	}
 }