[2.5] cmdline_read_proc strangeness?

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Hello!

    There is a bit of strange code in fs/proc/proc_misc.c::cmdline_read_proc()

        int len;

        len = sprintf(page, "%s\n", saved_command_line);
        len = strlen(page);

    Why do we need the strlen() here? It looks like pure overhead to me.
    Am I missing something obvious?

Bye,
    Oleg
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