Allow .clang-format

ktf · Barthelemy · commit 39ee29a2cb40 · 2019-02-25T12:18:46.000+01:00
New logic in AliceO2Group/CodingGuidelines will sync it.
diff --git a/.gitignore b/.gitignore
@@ -10,4 +10,3 @@ README.md.*
 cmake-build-*
 Framework/test/testCcdbApi2.cxx
 local_history.patch
-.clang-format
