Fix minor typos (not bugs).

BitKeeper/etc/logging_ok

@@ -4,3 +4,4 @@ mwagner@evoq.mwagner.org
 sasha@mysql.sashanet.com
 serg@serg.mysql.com
 monty@donna.mysql.fi
+tim@threads.polyesthetic.msg

Docs/manual.texi

@@ -33654,7 +33654,7 @@ First, you should try to find out whether the problem is that the
 client.  You can check how long your @code{mysqld} server has been up by
 executing @code{mysqladmin version}.  If @code{mysqld} has died, you may
 find the reason for this in the file
-@file{mysql-data-directory/'hostname'.err}. @xref{Error log}.
+@file{mysql-data-directory/`hostname`.err}. @xref{Error log}.
 
 Many crashes of @strong{MySQL} are caused by corrupted index / data
 files.  @strong{MySQL} will update the data on disk, with the

sql/ha_innobase.cc

@@ -1659,7 +1659,7 @@ ha_innobase::change_active_index(
 
   	statistic_increment(ha_read_key_count, &LOCK_status);
 
-  	DBUG_ENTER("index_read_idx");
+  	DBUG_ENTER("ha_innobase::change_active_index");
 
 	active_index = keynr;
 
@@ -1685,7 +1685,7 @@ ha_innobase::change_active_index(
 
 	build_template(prebuilt, user_thd, table, ROW_MYSQL_WHOLE_ROW);
 
-	return(0);
+	DBUG_RETURN(0);
 }
 
 /**************************************************************************