The previois fix (JDK-8284181) is incomplete

$ LC_NUMERIC=en_DK.UTF-8 ./hotspot/variant-server/libjvm/gtest/gtestLauncher -jdk:./images/jdk/ --gtest_filter=ArgumentsTest.set_numeric_flag_double_vm

Note: Google Test filter = ArgumentsTest.set_numeric_flag_double_vm
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from ArgumentsTest
[ RUN ] ArgumentsTest.set_numeric_flag_double_vm
/shared/projects/openjdk/jdk-jdk/source/test/hotspot/gtest/runtime/test_arguments.cpp:600: Failure
Value of: ArgumentsTest::parse_argument(flag->name(), str)
  Actual: false
Expected: true
Test string '1.e-2' did not parse for type double.
[ FAILED ] ArgumentsTest.set_numeric_flag_double_vm (0 ms)
[----------] 1 test from ArgumentsTest (87 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (87 ms total)
[ PASSED ] 0 tests.
[ FAILED ] 1 test, listed below:
[ FAILED ] ArgumentsTest.set_numeric_flag_double_vm

 1 FAILED TEST
ERROR: RUN_ALL_TESTS() failed. Error 1