cargo fmt && fix issue with function_body_ptr

lib/api/src/js/module.rs

@@ -560,11 +560,11 @@ impl Module {
     /// is returned.
     pub fn custom_sections<'a>(&'a self, name: &'a str) -> impl Iterator<Item = Box<[u8]>> + 'a {
         // TODO: implement on JavaScript
-        DefaultCustomSectionsIterator { }
+        DefaultCustomSectionsIterator {}
     }
 }
 
-pub struct DefaultCustomSectionsIterator { }
+pub struct DefaultCustomSectionsIterator {}
 
 impl Iterator for DefaultCustomSectionsIterator {
     type Item = Box<[u8]>;