debug logs

Author: dilipped

test/ci/kokoro/run_integ_tests.sh

@@ -29,7 +29,7 @@ if [[ $KOKORO_JOB_NAME =~ "linux" ]]; then
   id -u
   # sudo -u tester id -u
   # runuser -l tester -c "id -u"
-  sudo -u tester source "$HELPER_PATH"
+  sudo -E -u tester source "$HELPER_PATH"
 elif [[ $KOKORO_JOB_NAME =~ "macos" ]]; then
   export LANG=en_US.UTF-8
   export LC_ALL=en_US.UTF-8