Tiny comment grammar fix
s/adds...with/adds...to
diff --git a/src/core/iomgr/pollset_set.h b/src/core/iomgr/pollset_set.h
index 98e3b55..6d73951 100644
--- a/src/core/iomgr/pollset_set.h
+++ b/src/core/iomgr/pollset_set.h
@@ -38,7 +38,7 @@
/* A grpc_pollset_set is a set of pollsets that are interested in an
action. Adding a pollset to a pollset_set automatically adds any
- fd's (etc) that have been registered with the set_set with that pollset.
+ fd's (etc) that have been registered with the set_set to that pollset.
Registering fd's automatically adds them to all current pollsets. */
#ifdef GPR_POSIX_SOCKET