get test script to work on linux

tests/koi8r/koi8r.sh

@@ -5,8 +5,16 @@ topdir=`dirname $0`/..
 
 initvariables $0
 # The question is utf-8. As recollq will use the locale to translate the cmd
-# line, need an utf-8 locale
-export LANG=uk_UA.UTF-8
+# line, need an utf-8 locale. This will fails on Linux (ubuntu lucid), the
+# shell translates the argument to ?????????. As the locale is already utf-8
+# in this case, just don't change it.
+
+sys=`uname`
+case $sys in
+  Linux);;
+  *)export LANG=uk_UA.UTF-8;;
+esac
+
 recollq 'внешнии' 2> $mystderr | 
 	egrep -v '^Recoll query: ' > $mystdout