message: ignore output_export.c in addition to output_export.cpp in coverage script
diff: @@ -29,7 +29,7 @@ lcov --directory "$SRC_DIR" --capture --output-file "$OUTPUT_DIR/$ENVIRONMENT.in
  # the file "output_export.cpp" causes an lcov error, but it doesn't appear to be part of our source, so I'm excluding it
  lcov -r "$OUTPUT_DIR/$ENVIRONMENT.info" --output-file "$OUTPUT_DIR/${ENVIRONMENT}_trimmed.info" \
  - "*output_export.cpp" \
  + "*output_export.c*" \
  "*.pio/libdeps/*" \
  "/usr/include*"
  genhtml "$OUTPUT_DIR/${ENVIRONMENT}_trimmed.info" --output-directory "$OUTPUT_DIR"
  