Set the LANG env property for all processes

- for sure.
- for now I am not changing the time zone as it seems it doesn't affect tests

Signed-off-by: David Matějček <david.matejcek@omnifish.ee>

appserver/tests/tck/tck-runner/src/main/java/org/glassfish/main/tests/tck/ant/TckRunner.java

@@ -190,6 +190,7 @@ private Process startBash(final String command) throws IOException {
 
     private void configureEnvironment(Map<String, String> env) {
         env.put("LC_ALL", "en_US.UTF-8");
+        env.put("LANG", "en");
         env.put("WORKSPACE", cfg.getTargetDir().getAbsolutePath());
         env.put("JAVA_HOME", cfg.getJdkDirectory().getAbsolutePath());
         env.put("JDK17_HOME", cfg.getJdkDirectory().getAbsolutePath());