rhg-status: rename a variable to be more explicit

Possibly we would have caught the looming bug earlier if this had been named
closer to what it actual is used for.

rust/rhg/src/commands/status.rs

@@ -383,7 +383,7 pub fn run(invocation: &crate::CliInvoca
             })?;
             let working_directory_vfs = repo.working_directory_vfs();
             let store_vfs = repo.store_vfs();
-            let revlog_open_options =
+            let filelog_open_options =
                 repo.default_revlog_options(RevlogType::Filelog)?;
             let res: Vec<_> = take(&mut ds_status.unsure)
                 .into_par_iter()
@@ -398,7 +398,7 pub fn run(invocation: &crate::CliInvoca
                         check_exec,
                         &manifest,
                         &to_check.path,
-                        revlog_open_options,
+                        filelog_open_options,
                     ) {
                         Err(HgError::IoError { .. }) => {
                             // IO errors most likely stem from the file being