Multiple locales: Add date_fmt (bug 24054)

It is not specified what should be the content of d_t_fmt and date_fmt
but in the built-in C locale those fields have only one difference:
date_fmt contains "%Z" (the current time zone) while d_t_fmt does not.

For most of the locales this commit does the following operation:
copy d_t_fmt to date_fmt, and then remove "%Z" from d_t_fmt.
If "%Z" was originally missing from d_t_fmt add it to date_fmt.
It also corrects comments where necessary.

Exceptions:

* In bo_CN, dz_BT, and km_KH "%Z" has not been added to date_fmt because
  it was too difficult.  In these locales date_fmt has been set to the
  copy of d_t_fmt.
* In en_DK "%Z" has not been removed from d_t_fmt in order to preserve
  the conformance with the standard mentioned in the comment.

The command to identify and initially edit the locales that need the
update was:

    for i in `grep -lw d_t_fmt *`
    do
        if ! grep -qw date_fmt $i ; then
            awk '/d_t_fmt/ { print $0; gsub("d_t_fmt", "date_fmt"); } //{ print $0 }' < $i > $i.next
            mv $i.next $i
        fi
    done

and then each file was further edited manually.

1 files changed, 3 insertions, 0 deletions

diff --git a/localedata/locales/zh_TW b/localedata/locales/zh_TW
index b869dec317..595d22623f 100644
--- a/localedata/locales/zh_TW
+++ b/localedata/locales/zh_TW
@@ -117,6 +117,9 @@ mon	"<U4E00><U6708>";"<U4E8C><U6708>";"<U4E09><U6708>";/
 d_t_fmt "<U897F><U5143>%Y<U5E74>%m<U6708>%d<U65E5> (%A) %H<U6642>/
 %M<U5206>%S<U79D2>"
 
+date_fmt "<U897F><U5143>%Y<U5E74>%m<U6708>%d<U65E5> (%A) %H<U6642>/
+%M<U5206>%S<U79D2> %Z"
+
 d_fmt	"<U897F><U5143>%Y<U5E74>%m<U6708>%d<U65E5>"
 
 t_fmt	"%H<U6642>%M<U5206>%S<U79D2>"