container_of: Format with clang-format

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I3ffe32a7eed1567b450d88257dd1a0714f8e51f7
diff --git a/.clang-ignore b/.clang-ignore
index 5c244c7..8fef609 100644
--- a/.clang-ignore
+++ b/.clang-ignore
@@ -1,6 +1,5 @@
 alloc.c
 astlpc.c
-container_of.h
 core.c
 libmctp-astlpc.h
 libmctp-serial.h
diff --git a/container_of.h b/container_of.h
index a0e181a..2abb332 100644
--- a/container_of.h
+++ b/container_of.h
@@ -3,7 +3,7 @@
 
 #ifndef container_of
 #define container_of(ptr, type, member)                                        \
-    (type *)((char *)(ptr) - (char *)&((type *)0)->member)
+	(type *)((char *)(ptr) - (char *)&((type *)0)->member)
 #endif
 
 #endif