perf tools: Fix column width setting on 'trace' sort key
It missed to update column length of the 'trace' sort key in the hists__calc_col_len() so it might truncate the output. It calculated the column length in the ->cmp() callback originally but it doesn't guarantee it's called always. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1456064558-13086-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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