libmemtrack: Add clang-format upload hook am: 8572eb5caa am: 92d6027c30 am: cf5c45f74c am: b044324bcd am: eed399ac94

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmemtrack/+/2153820

Change-Id: I52447c21494d8262d9a7f272418db1fdc794f02d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
new file mode 100644
index 0000000..c8dbf77
--- /dev/null
+++ b/PREUPLOAD.cfg
@@ -0,0 +1,5 @@
+[Builtin Hooks]
+clang_format = true
+
+[Builtin Hooks Options]
+clang_format = --commit ${PREUPLOAD_COMMIT} --style file --extensions c,h,cc,cpp