synchonize cz/cs codes in translators file

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@39774 15284696-431f-4ddb-bdfa-cd5b030d7da7

translators.csv

@@ -1,7 +1,7 @@
 name,email,languages
 Solomon Gizaw,<solohavi yahoo.com>,AM
 Dr. Alaa Masoud,<alaamasoud hotmail.com>,AR
-Radim Blazek,<radim.blazek gmail.com>,CS
+Radim Blazek,<radim.blazek gmail.com>,CZ
 Jan Trochta,<j.trochta seznam.cz>,CZ
 Jáchym Cepický,<jachym.cepicky centrum.cz>,CZ
 Martin Landa,<landa.martin gmail.com>,CZ