misaligned blame output if repo has >1m revisions

Hi devs,

Just a heads up, not really important, but I came across this in
blame_cmd.c (inside print_line_info):

[[[
  const char *rev_str = SVN_IS_VALID_REVNUM(revision)
    ? apr_psprintf(pool, "%6ld", revision)
                        : " -";

]]]

Which means that users of a repo with over 1 million revisions will
see misaligned blame output ...

So I guess this is coming up for you guys when s.a.o reaches the 1
million mark :-).

-- 
Johan