check_compliance: Set KCONFIG_WARN_UNDEF instead of KCONFIG_STRICT

They are synonyms, and KCONFIG_WARN_UNDEF is more explicit.

KCONFIG_STRICT became a bad name when more env. variables warnings were
added to control warnings, but it's still supported for backwards
compatibility.

Signed-off-by: Ulf Magnusson <[email protected]>

Author: ulfalizer

scripts/ci/check_compliance.py

@@ -250,9 +250,9 @@ def parse_kconfig(self):
         # For multi repo support
         self.get_modules(os.path.join(tempfile.gettempdir(), "Kconfig.modules"))
 
-        # Enable strict Kconfig mode in Kconfiglib, which assumes there's just a
-        # single Kconfig tree and warns for all references to undefined symbols
-        os.environ["KCONFIG_STRICT"] = "y"
+        # Tells Kconfiglib to generate warnings for all references to undefined
+        # symbols within Kconfig files
+        os.environ["KCONFIG_WARN_UNDEF"] = "y"
 
         try:
             return kconfiglib.Kconfig()