vim: Parse skip_magic_trailing_comma from pyproject.toml (#2613)

Co-authored-by: Kyle Kovacs <kkovacs@diconfiberoptics.com>

CHANGES.md

@@ -15,6 +15,7 @@
 ### Integrations
 
 - Fixed vim plugin with Python 3.10 by removing deprecated distutils import (#2610)
+- The vim plugin now parses `skip_magic_trailing_comma` from pyproject.toml (#2613)
 
 ## 21.10b0
 

autoload/black.vim

@@ -29,6 +29,7 @@ FLAGS = [
   Flag(name="fast", cast=strtobool),
   Flag(name="skip_string_normalization", cast=strtobool),
   Flag(name="quiet", cast=strtobool),
+  Flag(name="skip_magic_trailing_comma", cast=strtobool),
 ]
 
 
@@ -143,6 +144,7 @@ def Black(**kwargs):
     line_length=configs["line_length"],
     string_normalization=not configs["skip_string_normalization"],
     is_pyi=vim.current.buffer.name.endswith('.pyi'),
+    magic_trailing_comma=not configs["skip_magic_trailing_comma"],
     **black_kwargs,
   )
   quiet = configs["quiet"]