Apologies that this uses my preferred formatting style: mostly the same as Linux, but without a break between function and brace. Adds spaces in a few places they weren't before.
new file mode 100644
@@ -0,0 +1,6 @@
+IndentWidth: 8
+UseTab: Always
+BreakBeforeBraces: Attach
+IndentCaseLabels: true
+AllowShortFunctionsOnASingleLine: false
+ColumnLimit: 100