Cleanup in ha_innodb.cc:

thd_is_replication_slave_thread(), thd_has_edited_nontrans_tables():
Remove blank line between the function comment and the function
definition.  There should be exactly one line between the return
type and the function comment, and this line should be one of
'', 'static', 'UNIV_INLINE', and 'extern "C"'.

handler/ha_innodb.cc

@@ -439,7 +439,6 @@ server. Used in srv_conc_enter_innodb() to determine if the thread
 should be allowed to enter InnoDB - the replication thread is treated
 differently than other threads. Also used in
 srv_conc_force_exit_innodb(). */
-
 extern "C"
 ibool
 thd_is_replication_slave_thread(
@@ -511,7 +510,6 @@ Returns true if the transaction this thread is processing has edited
 non-transactional tables. Used by the deadlock detector when deciding
 which transaction to rollback in case of a deadlock - we try to avoid
 rolling back transactions that have edited non-transactional tables. */
-
 extern "C"
 ibool
 thd_has_edited_nontrans_tables(