Add test for #5062

```
	3730 - OpenStudioCLI.execute_ruby_script.forward_flags.forward_help (Failed)
	3731 - OpenStudioCLI.execute_python_script.forward_flags.forward_help (Failed)
```

src/cli/CMakeLists.txt

@@ -297,10 +297,17 @@ if(BUILD_TESTING)
 
   # Test via optparse and check file exists
   # Historical CLI versions
-    add_test(NAME OpenStudioCLI.Classic.execute_ruby_script.forward_flags.optparse.path_forwardslash
+  add_test(NAME OpenStudioCLI.Classic.execute_ruby_script.forward_flags.optparse.path_forwardslash
     COMMAND $<TARGET_FILE:openstudio> classic execute_ruby_script execute_ruby_script_optparse_path.rb -x "./test_folder/hello.xml"
     WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/test/"
   )
+  add_test(NAME OpenStudioCLI.Classic.execute_ruby_script.forward_flags.forward_help
+    COMMAND $<TARGET_FILE:openstudio> classic execute_ruby_script ${CMAKE_CURRENT_SOURCE_DIR}/test/execute_ruby_script_optparse_path.rb --help
+  )
+  set_tests_properties(OpenStudioCLI.Classic.execute_ruby_script.forward_flags.forward_help PROPERTIES
+    PASS_REGULAR_EXPRESSION "The Ruby help description."
+  )
+
   if (WIN32)
     # Posix paths don't understand a backward slash anyways
     add_test(NAME OpenStudioCLI.Classic.execute_ruby_script.forward_flags.optparse.path_backwardslash
@@ -313,6 +320,21 @@ if(BUILD_TESTING)
     COMMAND $<TARGET_FILE:openstudio> execute_ruby_script execute_ruby_script_optparse_path.rb -x "./test_folder/hello.xml"
     WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/test/"
   )
+
+  add_test(NAME OpenStudioCLI.execute_ruby_script.forward_flags.forward_help
+    COMMAND $<TARGET_FILE:openstudio> execute_ruby_script ${CMAKE_CURRENT_SOURCE_DIR}/test/execute_ruby_script_optparse_path.rb --help
+  )
+  set_tests_properties(OpenStudioCLI.execute_ruby_script.forward_flags.forward_help PROPERTIES
+    PASS_REGULAR_EXPRESSION "The Ruby help description."
+  )
+
+  add_test(NAME OpenStudioCLI.execute_python_script.forward_flags.forward_help
+    COMMAND $<TARGET_FILE:openstudio> execute_python_script ${CMAKE_CURRENT_SOURCE_DIR}/test/execute_python_script_argparse_path.py --help
+  )
+  set_tests_properties(OpenStudioCLI.execute_python_script.forward_flags.forward_help PROPERTIES
+    PASS_REGULAR_EXPRESSION "The Python help description."
+  )
+
   if (WIN32)
     add_test(NAME OpenStudioCLI.execute_ruby_script.forward_flags.optparse.path_backwardslash
       COMMAND $<TARGET_FILE:openstudio> execute_ruby_script execute_ruby_script_optparse_path.rb -x ".\\test_folder\\hello.xml"

src/cli/test/execute_python_script_argparse_path.py

@@ -0,0 +1,21 @@
+import argparse
+from pathlib import Path
+
+
+def validate_file(arg):
+    if (filepath := Path(arg)).is_file():
+        return filepath
+    else:
+        raise FileNotFoundError(arg)
+
+def validate_xml_file(arg):
+    filepath = validate_file(arg)
+    if (filepath.suffix != '.xml'):
+        raise FileNotFoundError(f"{arg} is not a .xml file")
+    return filepath
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="The Python help description.")
+    parser.add_argument("-x,--xml", metavar='FILE', required=True, type=validate_xml_file, help="HPXML file")
+    args = parser.parse_args()
+    print(args)

src/cli/test/execute_ruby_script_optparse_path.rb

@@ -4,6 +4,7 @@
 options = {}
 OptionParser.new do |opts|
   opts.banner = "Usage: #{File.basename(__FILE__)} -x building.xml"
+  opts.banner += "\n\nThe Ruby help description.\n\n"
 
   opts.on('-x', '--xml <FILE>', 'HPXML file') do |t|
     options[:hpxml] = t