Rust fmt fixes

cranelift/module/src/data_context.rs

@@ -47,7 +47,7 @@ pub struct DataDescription {
     /// Data addresses to write at specified offsets.
     pub data_relocs: Vec<(CodeOffset, ir::GlobalValue, Addend)>,
     /// Object file section
-    pub section: Option<(std::string::String, std::string::String)>
+    pub section: Option<(std::string::String, std::string::String)>,
 }
 
 /// This is to data objects what cranelift_codegen::Context is to functions.
@@ -65,7 +65,7 @@ impl DataContext {
                 data_decls: PrimaryMap::new(),
                 function_relocs: vec![],
                 data_relocs: vec![],
-                section: None
+                section: None,
             },
         }
     }
@@ -95,7 +95,10 @@ impl DataContext {
 
     /// Override the segment/section for data, only supported on Object backend
     pub fn set_section(&mut self, seg: &str, sec: &str) {
-        self.description.section = Some((std::string::String::from(seg), std::string::String::from(sec)))
+        self.description.section = Some((
+            std::string::String::from(seg),
+            std::string::String::from(sec),
+        ))
     }
 
     /// Declare an external function import.