Fix typo in documentation using indect

The documentation for the `FileProcessor` class used `indect_char` while the
class itself uses the more sensible name `indent_char`. This updates both the
docstring as well as the documentation.

docs/source/plugin-development/plugin-parameters.rst

@@ -30,7 +30,7 @@ a file, a plugin can ask for any of the following:
 - :attr:`~flake8.processor.FileProcessor.blank_before`
 - :attr:`~flake8.processor.FileProcessor.blank_lines`
 - :attr:`~flake8.processor.FileProcessor.checker_state`
-- :attr:`~flake8.processor.FileProcessor.indect_char`
+- :attr:`~flake8.processor.FileProcessor.indent_char`
 - :attr:`~flake8.processor.FileProcessor.indent_level`
 - :attr:`~flake8.processor.FileProcessor.line_number`
 - :attr:`~flake8.processor.FileProcessor.logical_line`

src/flake8/processor.py

@@ -33,7 +33,7 @@ class FileProcessor(object):
     - :attr:`blank_before`
     - :attr:`blank_lines`
     - :attr:`checker_state`
-    - :attr:`indect_char`
+    - :attr:`indent_char`
     - :attr:`indent_level`
     - :attr:`line_number`
     - :attr:`logical_line`