Fixes during review of new pushed code

sql/handler.cc:
  Indentation fixes
sql/item.cc:
  Remove not needed test of *ref (If ref is set it always points to a valid address)
sql/table.cc:
  Indentation changes
  Moved buff_end directly after 'buff' assignment to make code more clear
sql/unireg.cc:
  Indentation changes

sql/handler.cc

@@ -185,16 +185,16 @@ enum db_type ha_resolve_by_name(const char *name, uint namelen)
   handlerton **types;
 
   if (thd && !my_strnncoll(&my_charset_latin1,
-        (const uchar *)name, namelen,
-        (const uchar *)"DEFAULT", 7))
+                           (const uchar *)name, namelen,
+                           (const uchar *)"DEFAULT", 7))
     return (enum db_type) thd->variables.table_type;
 
 retest:
   for (types= sys_table_types; *types; types++)
   {
     if (!my_strnncoll(&my_charset_latin1,
-          (const uchar *)name, namelen,
-          (const uchar *)(*types)->name, strlen((*types)->name)))
+                      (const uchar *)name, namelen,
+                      (const uchar *)(*types)->name, strlen((*types)->name)))
       return (enum db_type) (*types)->db_type;
   }
 
@@ -204,8 +204,9 @@ retest:
   for (table_alias= sys_table_aliases; table_alias->type; table_alias++)
   {
     if (!my_strnncoll(&my_charset_latin1,
-          (const uchar *)name, namelen,
-          (const uchar *)table_alias->alias, strlen(table_alias->alias)))
+                      (const uchar *)name, namelen,
+                      (const uchar *)table_alias->alias,
+                      strlen(table_alias->alias)))
     {
       name= table_alias->type;
       namelen= strlen(name);

sql/item.cc

@@ -4628,7 +4628,7 @@ void Item_ref::cleanup()
 
 void Item_ref::print(String *str)
 {
-  if (ref && *ref)
+  if (ref)
     (*ref)->print(str);
   else
     Item_ident::print(str);
@@ -4814,7 +4814,7 @@ void Item_ref::make_field(Send_field *field)
 void Item_ref_null_helper::print(String *str)
 {
   str->append("<ref_null_helper>(", 18);
-  if (ref && *ref)
+  if (ref)
     (*ref)->print(str);
   else
     str->append('?');

sql/table.cc

@@ -310,6 +310,7 @@ int openfrm(THD *thd, const char *name, const char *alias, uint db_stat,
     char *buff, *next_chunk, *buff_end;
     if (!(next_chunk= buff= my_malloc(n_length, MYF(MY_WME))))
       goto err;
+    buff_end= buff + n_length;
     if (my_pread(file, (byte*)buff, n_length, record_offset + share->reclength,
                  MYF(MY_NABP)))
     {
@@ -324,13 +325,14 @@ int openfrm(THD *thd, const char *name, const char *alias, uint db_stat,
       goto err;
     }
     next_chunk+= share->connect_string.length + 2;
-    buff_end= buff + n_length;
     if (next_chunk + 2 < buff_end)
     {
       uint str_db_type_length= uint2korr(next_chunk);
       share->db_type= ha_resolve_by_name(next_chunk + 2, str_db_type_length);
-      DBUG_PRINT("enter", ("Setting dbtype to: %d - %d - '%.*s'\n", share->db_type,
-            str_db_type_length, str_db_type_length, next_chunk + 2));
+      DBUG_PRINT("enter", ("Setting dbtype to: %d - %d - '%.*s'\n",
+                           share->db_type,
+                           str_db_type_length, str_db_type_length,
+                           next_chunk + 2));
       next_chunk+= str_db_type_length + 2;
     }
     my_free(buff, MYF(0));

sql/unireg.cc

@@ -119,10 +119,10 @@ bool mysql_create_frm(THD *thd, my_string file_name,
   reclength=uint2korr(forminfo+266);
 
   /* Calculate extra data segment length */
-  str_db_type.str= (char *)ha_get_storage_engine(create_info->db_type);
+  str_db_type.str= (char *) ha_get_storage_engine(create_info->db_type);
   str_db_type.length= strlen(str_db_type.str);
-  create_info->extra_size= 2 + str_db_type.length;
-  create_info->extra_size+= create_info->connect_string.length + 2;
+  create_info->extra_size= (2 + str_db_type.length +
+                            2 + create_info->connect_string.length);
 
   if ((file=create_frm(thd, file_name, db, table, reclength, fileinfo,
 		       create_info, keys)) < 0)