*
* Code built directly into the backend is not allowed to link to libpq
* directly. Extension code is allowed to use libpq however. However, libpq
- * used in extensions has to be careful to block inside libpq, otherwise
+ * used in extensions has to be careful not to block inside libpq, otherwise
* interrupts will not be processed, leading to issues like unresolvable
* deadlocks. Backend code also needs to take care to acquire/release an
* external fd for the connection, otherwise fd.c's accounting of fd's is