pgsql: Translation updates to fix build failures

Translation updates to fix build failures

Now that msgfmt is run with -c by default, older versions of gettext are
complaining about the PO headers Last-Translator and Language-Team
still having their default values.  Newer gettext versions fail to catch
this because of a bug (https://savannah.gnu.org/bugs/?40261), which is
why this hasn't been noticed before.

Copy updated versions of affected translation files from the
pgtranslations repository, were those files have been fixed.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/382b694175e9dfda98c508cedc70b7b4d1bcfb19

Modified Files
--------------
src/bin/pg_basebackup/po/zh_CN.po    |    4 ++--
src/interfaces/ecpg/ecpglib/po/cs.po |    6 +++---
src/pl/plperl/po/cs.po               |    6 +++---
src/pl/tcl/po/cs.po                  |    6 +++---
4 files changed, 11 insertions(+), 11 deletions(-)