tweak comments

src/tools/miri/src/helpers.rs

@@ -225,7 +225,7 @@ fn project_field_named<P: Projectable<'tcx, Provenance>>(
         bug!("No field named {} in type {}", name, base.layout().ty);
     }
 
-    /// Search if Project (which must be a struct or union type) contains the `name` field.
+    /// Search if `base` (which must be a struct or union type) contains the `name` field.
     fn projectable_has_field<P: Projectable<'tcx, Provenance>>(
         &self,
         base: &P,

src/tools/miri/src/shims/unix/fs.rs

@@ -1466,8 +1466,8 @@ fn macos_fbsd_readdir_r(
                         ],
                         &entry_place,
                     )?;
-                    // freebsd 12 and onwards had added the d_off field
                 } else if this.projectable_has_field(&entry_place, "d_off") {
+                    // freebsd 12 and onwards had added the d_off field
                     this.write_int_fields_named(
                         &[
                             ("d_fileno", ino.into()),