Issue #19147: Fix docstring for fcntl.flock to refer to correct man section.
diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c
index 997867a..cd5c98f 100644
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -299,7 +299,7 @@
"flock(fd, operation)\n\
\n\
Perform the lock operation op on file descriptor fd. See the Unix \n\
-manual page for flock(3) for details. (On some systems, this function is\n\
+manual page for flock(2) for details. (On some systems, this function is\n\
emulated using fcntl().)");