doc: Correct HCLH function prototypes.

doc/ck_spinlock

@@ -150,13 +150,13 @@ Concurrency Kit (libck, \-lck)
 .Fn ck_spinlock_fas_unlock "ck_spinlock_fas_t *lock"
 .Pp
 .Ft void
-.Fn ck_spinlock_hclh_init "ck_spinlock_clh_t **lock" "ck_spinlock_clh_t *unowned"
+.Fn ck_spinlock_hclh_init "ck_spinlock_hclh_t **lock" "ck_spinlock_hclh_t *unowned"
 .Ft bool
-.Fn ck_spinlock_hclh_locked "ck_spinlock_clh_t **lock"
+.Fn ck_spinlock_hclh_locked "ck_spinlock_hclh_t **lock"
 .Ft void
-.Fn ck_spinlock_hclh_lock "ck_spinlock_clh_t **lock" "ck_spinlock_clh_t *node"
+.Fn ck_spinlock_hclh_lock "ck_spinlock_hclh_t **lock" "ck_spinlock_hclh_t *node"
 .Ft void
-.Fn ck_spinlock_hclh_unlock "ck_spinlock_clh_t **node"
+.Fn ck_spinlock_hclh_unlock "ck_spinlock_hclh_t **node"
 .Pp
 .Dv ck_spinlock_mcs_t spinlock = CK_SPINLOCK_MCS_INITIALIZER;
 .Ft void
@@ -200,7 +200,7 @@ provides a summary of the current implementations.
     ck_spinlock_ticket   Ticket                        Centralized     None                      Yes
 .Ed
 .Pp
-* Hierarchical CLH only offers a weak fairness for threads accross cluster 
+* Hierarchical CLH only offers weak fairness for threads accross cluster 
 nodes.
 .Pp
 If contention is low and there is no hard requirement for starvation-freedom