Tweaked the coverage line ignore patterns.

 - Legacy-Id: 13880

Author: levkowetz

ietf/settings.py

@@ -496,10 +496,10 @@ def skip_unreadable_post(record):
 # These are code line regex patterns
 TEST_CODE_COVERAGE_EXCLUDE_LINES = [
     "coverage: *ignore",
-    "debug\.",
-    "def .*debug"
+    "debug",
     "unreachable\([^)]*\)",
     "if settings.DEBUG",
+    "if settings.TEST_CODE_COVERAGE_CHECKER",
     "if __name__ == .__main__.:",
 ]