date default output format : locale-dependency

[Jungshik Shin]

To whom it may concern:

I'm writing to suggest that the default output format of 'date' (when
neither '-R' nor '-I' option is given) has to be made locale-dependent
using gettext().

date.c (in sh-utils-2.0) has the following:

      format = (rfc_format
                ? (universal_time
                   ? "%a, %_d %b %Y %H:%M:%S GMT"
                   : "%a, %_d %b %Y %H:%M:%S %z")
                : (iso_8601_format
                   ? iso_format_string[iso_8601_format][universal_time]
                   : "%a %b %e %H:%M:%S %Z %Y"));

All but the last one is locale-independent. However, the last one "%a %b
%e %H:%M:%S %Z %Y" is locale-dependent. For instance, in ko_KR locale,
"%x %r" is more appropriate.  Therefore, I think it has to be enclosed
with 'gettext()' (or _() macro)

Thank you in advance for your kind consideration,

Jungshik Shin