Remove non-history libkse references and fix PTHREAD_PROCESSES_PRIVATE typo.

lib/libthr/libthr.3

@@ -47,9 +47,7 @@ library provides a 1:1 implementation of the
 library interfaces for application threading.
 It
 has been optimized for use by applications expecting system scope thread
-semantics, and can provide significant performance improvements
-compared to
-.Lb libkse .
+semantics.
 .Pp
 The library is tightly integrated with the run-time link editor
 .Xr ld-elf.so.1 1

share/man/man3/pthread_barrier_destroy.3

@@ -75,9 +75,7 @@ argument to
 .Fn pthread_barrier_init .
 Once the threads have been released the barrier will be reset.
 .Sh IMPLEMENTATION NOTES
-In both
-.Lb libkse
-and
+In
 .Lb libthr
 the
 .Dv PTHREAD_BARRIER_SERIAL_THREAD

share/man/man3/pthread_barrierattr.3

@@ -137,11 +137,9 @@ barriers
 does not fully conform to
 .St -p1003.2
 because the process-shared attribute is ignored in
-.Lb libthr ,
-and in
-.Lb libkse ;
+.Lb libthr ;
 if any value other than
-.Dv PTHREAD_PROCESSES_PRIVATE
+.Dv PTHREAD_PROCESS_PRIVATE
 is specified in a call to
 .Fn pthread_barrierattr_setpshared ,
 it will return

share/man/man3/pthread_condattr.3

@@ -167,7 +167,7 @@ does not fully conform to
 .St -p1003.2
 because the process-shared attribute is ignored;
 if any value other than
-.Dv PTHREAD_PROCESSES_PRIVATE
+.Dv PTHREAD_PROCESS_PRIVATE
 is specified in a call to
 .Fn pthread_condattr_setpshared ,
 it will return

share/man/man3/pthread_spin_init.3

@@ -129,10 +129,8 @@ does not fully conform to
 because the
 .Fa pshared
 argument is ignored in
-.Lb libthr ,
-and in
-.Lb libkse
+.Lb libthr ;
 if any value other than
-.Dv PTHREAD_PROCESSES_PRIVATE
+.Dv PTHREAD_PROCESS_PRIVATE
 is specified, it returns
 .Er EINVAL .