--- Libc/Libc-498/sys/sem_open.2
+++ Libc/Libc-391/sys/sem_open.2
@@ -29,24 +29,17 @@
 .Sh SYNOPSIS
 .Fd #include <semaphore.h>
 .Ft sem_t *
-.Fo sem_open
-.Fa "const char *name"
-.Fa "int oflag"
-.Fa "..."
-.Fc
-.Pp
-The parameters "mode_t mode" and "unsigned int value"
-are optional.
+.Fn sem_open "const char *name" "int flags"
+.Ft sem_t *
+.Fn sem_open "const char *name" "int flags" "mode_t mode" "unsigned int value"
 .Sh DESCRIPTION
 The named semaphore named
 .Fa name
 is initialized and opened as specified by the argument
-.Fa oflag
+.Fa flags
 and a semaphore descriptor is returned to the calling process.
 .Pp
-The value of
-.Fa oflag
-is formed by
+The flags specified are formed by
 .Em or Ns 'ing
 the following values:
 .Pp
@@ -56,8 +49,8 @@
 .Ed
 .Pp
 If
-.Dv O_CREAT
-is specified,
+.Dv O_CREATE
+if specified,
 .Fn sem_open
 requires an additional two arguments.
 .Fa mode
@@ -84,7 +77,7 @@
 set.
 .Pp
 When a new semaphore is created, it is given the user ID and group ID
-which correspond to the effective user and group IDs of the calling
+which coorespond to the effective user and group IDs of the calling
 process. There is no visible entry in the file system for the created
 object in this implementation.
 .Pp
@@ -155,14 +148,14 @@
 space available to create the semaphore.
 .El
 .Sh SEE ALSO
+.Xr semctl 2 ,
+.Xr semget 2 ,
+.Xr semop 2 ,
 .Xr sem_close 2 ,
 .Xr sem_post 2 ,
 .Xr sem_trywait 2 ,
 .Xr sem_unlink 2 ,
 .Xr sem_wait 2 ,
-.Xr semctl 2 ,
-.Xr semget 2 ,
-.Xr semop 2 ,
 .Xr umask 2
 .Sh HISTORY
 .Fn sem_open