Accept most of ruff's delinting

tests/plugins/tesseract_badutf8.py

@@ -1,7 +1,7 @@
 # SPDX-FileCopyrightText: 2022 James R. Barlow
 # SPDX-License-Identifier: MIT
 
-"""Tesseract bad utf8
+"""Tesseract bad utf8.
 
 In some cases, some versions of Tesseract can output binary gibberish or data
 that is not UTF-8 compatible, so we are forced to check that we can convert it

tests/plugins/tesseract_cache.py

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2022 James R. Barlow
 # SPDX-License-Identifier: MIT
-"""Cache output of tesseract to speed up test suite
+"""Cache output of tesseract to speed up test suite.
 
 The cache is keyed by by the input test file The input arguments are slugged
 into a hideous filename that more or less represents them literally.  Joined

tests/plugins/tesseract_debug_rotate.py

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2022 James R. Barlow
 # SPDX-License-Identifier: MIT
-"""Tesseract no-op/fixed rotate plugin
+"""Tesseract no-op/fixed rotate plugin.
 
 To quickly run tests where getting OCR output is not necessary and we want to test
 the rotation pipeline.

tests/plugins/tesseract_noop.py

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2022 James R. Barlow
 # SPDX-License-Identifier: MIT
-"""Tesseract no-op plugin
+"""Tesseract no-op plugin.
 
 To quickly run tests where getting OCR output is not necessary.