[PATCH 9pfs] main.c: pass minimum FD number to fcntl

[dnietoc]

From: Diego Nieto Cid <dnie...@gmail.com>

fcntl with the F_DUPFD_CLOEXEC expect a third int argument
which would take whatever garbage is in the stack if not
provided.
---
 main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 423d249..b34232f 100644
--- a/main.c
+++ b/main.c
@@ -427,7 +427,7 @@ establish_connection ()
   if (fd < 0)
     error (1, errno, "Cannot open connection");
 
-  fd_dup = fcntl (fd, F_DUPFD_CLOEXEC);
+  fd_dup = fcntl (fd, F_DUPFD_CLOEXEC, fd);
   if (fd_dup < 0)
     error (1, errno, "fcntl(F_DUPFD_CLOEXEC)");
 
-- 
2.53.0