Options: fix yaml export corner case (ArchipelagoMW#3529)

Options.py

@@ -1432,14 +1432,18 @@ def dictify_range(option: Range):
 
         return data, notes
 
+    def yaml_dump_scalar(scalar) -> str:
+        # yaml dump may add end of document marker and newlines.
+        return yaml.dump(scalar).replace("...\n", "").strip()
+
     for game_name, world in AutoWorldRegister.world_types.items():
         if not world.hidden or generate_hidden:
-            grouped_options = get_option_groups(world)
+            option_groups = get_option_groups(world)
             with open(local_path("data", "options.yaml")) as f:
                 file_data = f.read()
             res = Template(file_data).render(
-                option_groups=grouped_options,
-                __version__=__version__, game=game_name, yaml_dump=yaml.dump,
+                option_groups=option_groups,
+                __version__=__version__, game=game_name, yaml_dump=yaml_dump_scalar,
                 dictify_range=dictify_range,
             )
 

data/options.yaml

@@ -68,21 +68,21 @@ requires:
 
     {%- elif option.options -%}
     {%- for suboption_option_id, sub_option_name in option.name_lookup.items() %}
-    {{ sub_option_name }}: {% if suboption_option_id == option.default %}50{% else %}0{% endif %}
+    {{ yaml_dump(sub_option_name) }}: {% if suboption_option_id == option.default %}50{% else %}0{% endif %}
     {%- endfor -%}
 
     {%- if option.name_lookup[option.default] not in option.options %}
-    {{ option.default }}: 50
+    {{ yaml_dump(option.default) }}: 50
     {%- endif -%}
 
     {%- elif option.default is string %}
-    {{ option.default }}: 50
+    {{ yaml_dump(option.default) }}: 50
 
     {%- elif option.default is iterable and option.default is not mapping %}
     {{ option.default | list }}
 
     {%- else %}
-    {{ yaml_dump(option.default) | trim | indent(4, first=false) }}
+    {{ yaml_dump(option.default) | indent(4, first=false) }}
     {%- endif -%}
     {{ "\n" }}
   {%- endfor %}