wording fixed

sql/sql_cache.cc

@@ -1532,11 +1532,11 @@ ulong Query_cache::init_cache()
 		 query_cache_table_get_key, 0, 0));
 #else
   /*
-    On windows, OS/2, MacOS X with HFS+ or any other case insensitive 
-    file system if lower_case_table_names!=0 we have same situation as 
-    in previous case, but if lower_case_table_names==0 then we should 
-    not distinguish cases (to be compatible in behavior with underlaying 
-    file system) and so should use case insensitive collation for 
+    On windows, OS/2, MacOS X with HFS+ or any other case insensitive
+    file system if lower_case_table_names!=0 we have same situation as
+    in previous case, but if lower_case_table_names==0 then we should
+    not distinguish cases (to be compatible in behavior with underlying
+    file system) and so should use case insensitive collation for
     comparison.
   */
   VOID(hash_init(&tables,

sql/sql_lex.cc

@@ -1561,8 +1561,8 @@ bool st_select_lex_unit::check_updateable(char *db, char *table)
 
 
 /*
-  Find db.table which will be updated in this select and 
-  underlaying ones (except derived tables)
+  Find db.table which will be updated in this select and
+  underlying ones (except derived tables)
 
   SYNOPSIS
     st_select_lex::check_updateable()
@@ -1583,7 +1583,7 @@ bool st_select_lex::check_updateable(char *db, char *table)
 }
 
 /*
-   Find db.table which will be updated in underlaying subqueries
+   Find db.table which will be updated in underlying subqueries
 
    SYNOPSIS
     st_select_lex::check_updateable_in_subqueries()

sql/sql_parse.cc

@@ -2800,7 +2800,7 @@ unsent_create_error:
       target_tbl->table= orig->table;
       /*
 	 Multi-delete can't be constructed over-union => we always have
-	 single SELECT on top and have to check underlaying SELECTs of it
+	 single SELECT on top and have to check underlying SELECTs of it
       */
       if (lex->select_lex.check_updateable_in_subqueries(orig->db,
                                                          orig->real_name))