Run idmap2 static-checks and fix formatting issues

Bug: 130324774
Test: builds
Change-Id: I2cf9d3aa268ffe38e525fadee9d81fc6aefe19b1
diff --git a/cmds/idmap2/libidmap2/FileUtils.cpp b/cmds/idmap2/libidmap2/FileUtils.cpp
index a9b68cd..3e8e329 100644
--- a/cmds/idmap2/libidmap2/FileUtils.cpp
+++ b/cmds/idmap2/libidmap2/FileUtils.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#include "idmap2/FileUtils.h"
+
 #include <dirent.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -33,8 +35,6 @@
 #include "android-base/stringprintf.h"
 #include "private/android_filesystem_config.h"
 
-#include "idmap2/FileUtils.h"
-
 namespace android::idmap2::utils {
 
 std::unique_ptr<std::vector<std::string>> FindFiles(const std::string& root, bool recurse,