rust: bitmap: fix formatting

We do our best to keep the repository `rustfmt`-clean, thus run the tool
to fix the formatting issue.

Link: https://docs.kernel.org/rust/coding-guidelines.html#style-formatting
Link: https://rust-for-linux.com/contributing#submit-checklist-addendum
Fixes: 0f5878834d6c ("rust: bitmap: clean Rust 1.92.0 `unused_unsafe` warning")
Reviewed-by: Burak Emir <bqe@google.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

rust/kernel/bitmap.rs

diff --git a/rust/kernel/bitmap.rs b/rust/kernel/bitmap.rs
index 711b836..aa8fc7bf 100644
--- a/rust/kernel/bitmap.rs
+++ b/rust/kernel/bitmap.rs
@@ -167,7 +167,9 @@ fn deref(&self) -> &Bitmap {
         let ptr = if self.nbits <= BITS_PER_LONG {
             // SAFETY: Bitmap is represented inline.
             #[allow(unused_unsafe, reason = "Safe since Rust 1.92.0")]
-            unsafe { core::ptr::addr_of!(self.repr.bitmap) }
+            unsafe {
+                core::ptr::addr_of!(self.repr.bitmap)
+            }
         } else {
             // SAFETY: Bitmap is represented as array of `unsigned long`.
             unsafe { self.repr.ptr.as_ptr() }
@@ -184,7 +186,9 @@ fn deref_mut(&mut self) -> &mut Bitmap {
         let ptr = if self.nbits <= BITS_PER_LONG {
             // SAFETY: Bitmap is represented inline.
             #[allow(unused_unsafe, reason = "Safe since Rust 1.92.0")]
-            unsafe { core::ptr::addr_of_mut!(self.repr.bitmap) }
+            unsafe {
+                core::ptr::addr_of_mut!(self.repr.bitmap)
+            }
         } else {
             // SAFETY: Bitmap is represented as array of `unsigned long`.
             unsafe { self.repr.ptr.as_ptr() }