doc: Fix typo

An ellipsis (…) is typically used in such cases.

Author: hebasto

src/init.cpp

@@ -1844,7 +1844,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
 
         // Start indexes initial sync
         if (!StartIndexBackgroundSync(node)) {
-            bilingual_str err_str = _("Failed to start indexes, shutting down..");
+            bilingual_str err_str = _("Failed to start indexes, shutting down…");
             chainman.GetNotifications().fatalError(err_str);
             return;
         }

test/functional/feature_index_prune.py

@@ -132,7 +132,7 @@ def run_test(self):
         self.log.info("make sure we get an init error when starting the nodes again with the indices")
         filter_msg = "Error: basic block filter index best block of the index goes beyond pruned data. Please disable the index or reindex (which will download the whole blockchain again)"
         stats_msg = "Error: coinstatsindex best block of the index goes beyond pruned data. Please disable the index or reindex (which will download the whole blockchain again)"
-        end_msg = f"{os.linesep}Error: A fatal internal error occurred, see debug.log for details: Failed to start indexes, shutting down.."
+        end_msg = f"{os.linesep}Error: A fatal internal error occurred, see debug.log for details: Failed to start indexes, shutting down…"
         for i, msg in enumerate([filter_msg, stats_msg, filter_msg]):
             self.nodes[i].assert_start_raises_init_error(extra_args=self.extra_args[i], expected_msg=msg+end_msg)