Formatting: Format all python code with black.

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BUG=b:233893248
TEST=CQ

Change-Id: I66591d7a738d241aed3290138c0f68065ab10a6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3879174
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
diff --git a/scripts/sysmon/__main__.py b/scripts/sysmon/__main__.py
index cd19ac7..a406f3c 100644
--- a/scripts/sysmon/__main__.py
+++ b/scripts/sysmon/__main__.py
@@ -9,5 +9,5 @@
 from chromite.scripts.sysmon import mainlib
 
 
-if __name__ == '__main__':
-  mainlib.main()
+if __name__ == "__main__":
+    mainlib.main()