Update .clang-format to latest version from docs

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Change-Id: Ie6e7f43e7554429704dca86b21320c90aed18791
diff --git a/tools/i2c/i2c.cpp b/tools/i2c/i2c.cpp
index bad5b89..4715c6e 100644
--- a/tools/i2c/i2c.cpp
+++ b/tools/i2c/i2c.cpp
@@ -8,7 +8,8 @@
 #include <cassert>
 #include <cerrno>
 
-extern "C" {
+extern "C"
+{
 #include <i2c/smbus.h>
 #include <linux/i2c-dev.h>
 #include <linux/i2c.h>