Tweak wording
diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c
index 49a9144..4e49a7d 100644
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -290,7 +290,7 @@
 "flock(fd, operation)\n\
 \n\
 Perform the lock operation op on file descriptor fd.  See the Unix \n\
-manual flock(3) for details.  (On some systems, this function is\n\
+manual page for flock(3) for details.  (On some systems, this function is\n\
 emulated using fcntl().)");