update_engine: Run clang-format on payload_generator/

BUG=none
TEST=unittest

Change-Id: I00cafb1fc709d8f02119cb0058cfcb0b573ef25d
Reviewed-on: https://chromium-review.googlesource.com/1409927
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Sen Jiang <senj@chromium.org>
diff --git a/payload_generator/fake_filesystem.h b/payload_generator/fake_filesystem.h
index 1b13920..e41a7a2 100644
--- a/payload_generator/fake_filesystem.h
+++ b/payload_generator/fake_filesystem.h
@@ -47,9 +47,7 @@
 
   // Sets the PAYLOAD_MINOR_VERSION key stored by LoadSettings(). Use a negative
   // value to produce an error in LoadSettings().
-  void SetMinorVersion(int minor_version) {
-    minor_version_ = minor_version;
-  }
+  void SetMinorVersion(int minor_version) { minor_version_ = minor_version; }
 
  private:
   FakeFilesystem() = default;