MDEV-6925: Remove bad "" operators.

Merged Facebook commit ec1aac68c74f3c1e558d057c4c9fcfe6edbbea93
authored by Steaphan Greene from https://github.com/facebook/mysql-5.6

In C++11, "" is not parsed as before.  So "A""B" is not the same as "AB".
Instead, whitespace is required, like: "A" "B"

storage/innobase/trx/trx0i_s.cc

@@ -1639,7 +1639,7 @@ trx_i_s_create_lock_id(
 	} else {
 		/* table lock */
 		res_len = ut_snprintf(lock_id, lock_id_size,
-				      TRX_ID_FMT":" UINT64PF,
+				      TRX_ID_FMT ":" UINT64PF,
 				      row->lock_trx_id,
 				      row->lock_table_id);
 	}

storage/xtradb/trx/trx0i_s.cc

@@ -1653,7 +1653,7 @@ trx_i_s_create_lock_id(
 	} else {
 		/* table lock */
 		res_len = ut_snprintf(lock_id, lock_id_size,
-				      TRX_ID_FMT":" UINT64PF,
+				      TRX_ID_FMT ":" UINT64PF,
 				      row->lock_trx_id,
 				      row->lock_table_id);
 	}