all: Update Python code to conform to latest black formatting.

Updating to Black v20.8b1 there are two changes that affect the code in
this repository:

- If there is a trailing comma in a list (eg [], () or function call) then
  that list is now written out with one line per element.  So remove such
  trailing commas where the list should stay on one line.

- Spaces at the start of """ doc strings are removed.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/ports/stm32/boards/make-pins.py b/ports/stm32/boards/make-pins.py
index 692387f404..a91ed8a2c9 100755
--- a/ports/stm32/boards/make-pins.py
+++ b/ports/stm32/boards/make-pins.py
@@ -515,7 +515,10 @@ def main():
         action="store_true",
     )
     parser.add_argument(
-        "-b", "--board", dest="board_filename", help="Specifies the board file",
+        "-b",
+        "--board",
+        dest="board_filename",
+        help="Specifies the board file",
     )
     parser.add_argument(
         "-p",