recent const churn

[Eric Blake]

After the recent churn in const-qualification in coreutils.git, there are still 
a couple of redundant qualifiers, as found by:

$ git grep '\bconst\b[^*]*\bconst\b' -- '*.[ch]'
src/ls.c:static const char const *long_time_format[2] =
src/ls.c:static const qsortFunc const sort_functions[][2][2][2] =
src/od.c:static const char const charname[33][4] =

Sounds like an updated maintainer rule to check for redundant const might be 
useful?  Or, if you like enforcing your HACKING rule of 'type const' 
over 'const type', would adding a syntax-check rule to look for 'static const' 
be useful?

-- 
Eric Blake