A number of small script fixes/tweaks from usage

- Fixed prettyasserts.py parsing when '->' is in expr

- Made prettyasserts.py failures not crash (yay dynamic typing)

- Fixed the initial state of the emubd disk file to match the internal
  state in RAM

- Fixed true/false getting changed to True/False in test.py/bench.py
  defines

- Fixed accidental substring matching in plot.py's --by comparison

- Fixed a missed LFS_BLOCk_CYCLES in test_superblocks.toml that was
  missed

- Changed test.py/bench.py -v to only show commands being run

  Including the test output is still possible with test.py -v -O-, making
  the implicit inclusion redundant and noisy.

- Added license comments to bench_runner/test_runner

runners/bench_runner.c

@@ -1,4 +1,9 @@
-
+/*
+ * Runner for littlefs benchmarks
+ *
+ * Copyright (c) 2022, The littlefs authors.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
 #ifndef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE 199309L
 #endif

runners/bench_runner.h

@@ -1,3 +1,9 @@
+/*
+ * Runner for littlefs benchmarks
+ *
+ * Copyright (c) 2022, The littlefs authors.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
 #ifndef BENCH_RUNNER_H
 #define BENCH_RUNNER_H
 

runners/test_runner.c

@@ -1,4 +1,9 @@
-
+/*
+ * Runner for littlefs tests
+ *
+ * Copyright (c) 2022, The littlefs authors.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
 #ifndef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE 199309L
 #endif

runners/test_runner.h

@@ -1,3 +1,9 @@
+/*
+ * Runner for littlefs tests
+ *
+ * Copyright (c) 2022, The littlefs authors.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
 #ifndef TEST_RUNNER_H
 #define TEST_RUNNER_H