fat,loader: revert import grouping and add empty rustfmt.toml

Signed-off-by: Ben Maddison <benm@workonline.africa>

Author: benmaddison

rustfmt.toml

@@ -12,12 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use core::convert::TryFrom;
-
 use crate::{
     block::{Error as BlockError, SectorRead},
     mem::MemoryRegion,
 };
+use core::convert::TryFrom;
 
 #[repr(packed)]
 struct Header {
@@ -878,11 +877,10 @@ impl<'a> Filesystem<'a> {
 
 #[cfg(test)]
 mod tests {
-    use std::convert::TryInto;
-    use std::path::PathBuf;
-
     use super::Read;
     use crate::part::tests::*;
+    use std::convert::TryInto;
+    use std::path::PathBuf;
 
     fn fat_test_image_paths() -> Vec<PathBuf> {
         let images = ["fat12.img", "fat16.img", "fat32.img"];

src/fat.rs

@@ -246,10 +246,9 @@ pub fn load_default_entry(fs: &fat::Filesystem, info: &dyn boot::Info) -> Result
 
 #[cfg(test)]
 mod tests {
-    use core::convert::TryInto;
-
     use crate::fat::Read;
     use crate::part::tests::*;
+    use core::convert::TryInto;
 
     #[test]
     fn test_default_entry() {