Fix plural rule. Revert translation for "%s bytes" - it was correct.

po/cs.po

@@ -18,8 +18,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=ISO-8859-2\n"
 "Content-Transfer-Encoding: 8-bit\n"
-"Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%"
-"10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 
 msgid " Choose syntax highlighting "
 msgstr "Vyber zv¤raznьnэ synta&Xe"
@@ -2654,7 +2653,7 @@ msgstr "Skupina"
 msgid "%s byte"
 msgid_plural "%s bytes"
 msgstr[0] "%s byte"
-msgstr[1] "%s byt¤"
+msgstr[1] "%s byty"
 msgstr[2] "%s byt∙"
 
 #, c-format