refactor: unify all mod.rs structure to 2018 style (#742)

This is a pretty small change, but at least _for now_, unifies all
`mod.rs` use cases to the 2018 style for consistency.

I personally don't mind going back to it on a case-by-case basis in the
future if it results in cleaner code, though.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/app/data_harvester/batteries.rs b/src/app/data_harvester/batteries.rs
new file mode 100644
index 00000000..8c0e4a92
--- /dev/null
+++ b/src/app/data_harvester/batteries.rs
@@ -0,0 +1,10 @@
+//! Data collection for batteries.
+//!
+//! For Linux, macOS, Windows, FreeBSD, Dragonfly, and iOS, this is handled by the battery crate.
+
+cfg_if::cfg_if! {
+    if #[cfg(any(target_os = "windows", target_os = "macos", target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "ios"))] {
+        pub mod battery;
+        pub use self::battery::*;
+    }
+}