Fix typo: funtion -> function

Signed-off-by: Ferenc Wágner <wferi@niif.hu>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>

man/cpg_zcb_alloc.3.in

@@ -43,7 +43,7 @@ The
 .B cpg_zcb_alloc
 function will allocate a zero copy buffer for use with the
 .B cpg_zcb_mcast_joined(3)
-funtion.  This buffer should not be used in another thread while a
+function.  This buffer should not be used in another thread while a
 cpg_zcb_mcast_joined operation is taking place on the buffer.  The buffer is
 allocated via operating system mechanisms to avoid copying in the IPC layer.
 

man/cpg_zcb_mcast_joined.3.in

@@ -45,7 +45,7 @@ The
 function will multicast a zero copy buffer message to all the processes that
 have been joined with the
 .B cpg_join(3)
-funtion for the same group name.
+function for the same group name.
 Messages that are sent to any of the groups joined to the parameter
 .I handle
 will be delivered to all subscribed processes in the system.