Message style fixes

Author: alvherre

src/backend/replication/logical/worker.c

@@ -3878,7 +3878,7 @@ maybe_start_skipping_changes(XLogRecPtr finish_lsn)
 	skip_xact_finish_lsn = finish_lsn;
 
 	ereport(LOG,
-			errmsg("start skipping logical replication transaction finished at %X/%X",
+			errmsg("logical replication starts skipping transaction at LSN %X/%X",
 				   LSN_FORMAT_ARGS(skip_xact_finish_lsn)));
 }
 
@@ -3892,7 +3892,7 @@ stop_skipping_changes(void)
 		return;
 
 	ereport(LOG,
-			(errmsg("done skipping logical replication transaction finished at %X/%X",
+			(errmsg("logical replication completed skipping transaction at LSN %X/%X",
 					LSN_FORMAT_ARGS(skip_xact_finish_lsn))));
 
 	/* Stop skipping changes */
@@ -3975,7 +3975,7 @@ clear_subscription_skip_lsn(XLogRecPtr finish_lsn)
 		if (myskiplsn != finish_lsn)
 			ereport(WARNING,
 					errmsg("skip-LSN of logical replication subscription \"%s\" cleared", MySubscription->name),
-					errdetail("Remote transaction's finish WAL location (LSN) %X/%X did not match skip-LSN %X/%X",
+					errdetail("Remote transaction's finish WAL location (LSN) %X/%X did not match skip-LSN %X/%X.",
 							  LSN_FORMAT_ARGS(finish_lsn),
 							  LSN_FORMAT_ARGS(myskiplsn)));
 	}

src/backend/utils/init/postinit.c

@@ -454,9 +454,10 @@ CheckMyDatabase(const char *name, bool am_superuser, bool override_allow_connect
 
 		actual_versionstr = get_collation_actual_version(dbform->datlocprovider, dbform->datlocprovider == COLLPROVIDER_ICU ? iculocale : collate);
 		if (!actual_versionstr)
-			ereport(WARNING,
-					(errmsg("database \"%s\" has no actual collation version, but a version was recorded",
-							name)));
+			/* should not happen */
+			elog(WARNING,
+				 "database \"%s\" has no actual collation version, but a version was recorded",
+				 name);
 		else if (strcmp(actual_versionstr, collversionstr) != 0)
 			ereport(WARNING,
 					(errmsg("database \"%s\" has a collation version mismatch",

src/backend/utils/misc/guc.c

@@ -2837,7 +2837,7 @@ static struct config_int ConfigureNamesInt[] =
 	{
 		{"wal_decode_buffer_size", PGC_POSTMASTER, WAL_RECOVERY,
 			gettext_noop("Maximum buffer size for reading ahead in the WAL during recovery."),
-			gettext_noop("This controls the maximum distance we can read ahead in the WAL to prefetch referenced blocks."),
+			gettext_noop("This controls the maximum distance we can read ahead in the WAL to prefetch data blocks referenced therein."),
 			GUC_UNIT_BYTE
 		},
 		&wal_decode_buffer_size,

src/test/subscription/t/029_on_error.pl

@@ -48,7 +48,7 @@ sub test_skip_lsn
 	# Check the log to ensure that the transaction is skipped, and advance the
 	# offset of the log file for the next test.
 	$offset = $node_subscriber->wait_for_log(
-		qr/LOG: ( [A-Z0-9]+:)? done skipping logical replication transaction finished at $lsn/,
+		qr/LOG: ( [A-Z0-9]+:)? logical replication completed skipping transaction at LSN $lsn/,
 		$offset);
 
 	# Insert non-conflict data