mu-indexer: clean up state management

lib/index/mu-indexer.hh

@@ -50,9 +50,9 @@ public:
                 /**< clean messages no longer in the file system */
                 size_t max_threads{};
                 /**< maximum # of threads to use */
-                bool   ignore_noupdate{};
+                bool ignore_noupdate{};
                 /**< ignore .noupdate files */
-                bool   lazy_check{};
+                bool lazy_check{};
                 /**< whether to skip directories that don't have a changed
                  * mtime */
         };