Fix a comment re wakeup_fd
@ -46,7 +46,7 @@
*
* Setup:
* 1. Before calling anything, call global_init() at least once.
* 1. Call grpc_wakeup_fd_create() to get a wakeup_fd.
* 1. Call grpc_wakeup_fd_init() to set up a wakeup_fd.
* 2. Add the result of GRPC_WAKEUP_FD_FD to the set of monitored file
* descriptors for the poll() style API you are using. Monitor the file
* descriptor for readability.