[5.2.x] Fixed #36266 -- Renamed HIDE_PRODUCTION_WARNING environment variable to DJANGO_RUNSERVER_HIDE_WARNING.

Backport of 5adadf6e8c74ab14d432e9d682ca1914789386de from main.

django/core/management/commands/runserver.py

@@ -189,7 +189,7 @@ class Command(BaseCommand):
             file=self.stdout,
         )
         docs_version = get_docs_version()
-        if os.environ.get("HIDE_PRODUCTION_WARNING") != "true":
+        if os.environ.get("DJANGO_RUNSERVER_HIDE_WARNING") != "true":
             self.stdout.write(
                 self.style.WARNING(
                     "WARNING: This is a development server. Do not use it in a "

docs/ref/django-admin.txt

@@ -947,7 +947,7 @@ multithreaded by default.
 Uses IPv6 for the development server. This changes the default IP address from
 ``127.0.0.1`` to ``::1``.
 
-.. envvar:: HIDE_PRODUCTION_WARNING
+.. envvar:: DJANGO_RUNSERVER_HIDE_WARNING
 
 .. versionadded:: 5.2
 

docs/releases/5.2.txt

@@ -276,7 +276,8 @@ Management Commands
 
 * A new warning is displayed when running :djadmin:`runserver`, indicating that
   it is unsuitable for production. This warning can be suppressed by setting
-  the :envvar:`HIDE_PRODUCTION_WARNING` environment variable to ``"true"``.
+  the :envvar:`DJANGO_RUNSERVER_HIDE_WARNING` environment variable to
+  ``"true"``.
 
 * The :djadmin:`makemigrations` and :djadmin:`migrate` commands  have a new
   ``Command.autodetector`` attribute for subclasses to override in order to use

tests/admin_scripts/tests.py

@@ -1630,7 +1630,7 @@ class ManageRunserver(SimpleTestCase):
             self.output.getvalue(),
         )
 
-    @mock.patch.dict(os.environ, {"HIDE_PRODUCTION_WARNING": "true"})
+    @mock.patch.dict(os.environ, {"DJANGO_RUNSERVER_HIDE_WARNING": "true"})
     def test_hide_production_warning_with_environment_variable(self):
         self.cmd.addr = "0"
         self.cmd._raw_ipv6 = False