Fix issues raised by Pylint 2.4.4 on CI

Locally they were unreported by Pylint 2.9.2.

Signed-off-by: Yuto Takano <yuto.takano@arm.com>

tests/scripts/check_names.py

@@ -461,9 +461,10 @@ class CodeParser():
             # Match names of typedef instances, after closing bracket.
             r"}? *(\w+)[;[].*"
         )
+        # The regex below is indented for clarity.
         exclusion_lines = re.compile(
             r"^("
-                r"extern +\"C\"|"
+                r"extern +\"C\"|" # pylint: disable=bad-continuation
                 r"(typedef +)?(struct|union|enum)( *{)?$|"
                 r"} *;?$|"
                 r"$|"