mount: for NFS use tcp per default rather than udp

nfs-utils's mount.nfs uses TCP per default unless explicitly asked for
otherwise. This is also the expected behaviour for NFSv4, so ok there,
too.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

util-linux/mount.c

@@ -1195,7 +1195,7 @@ static NOINLINE int nfsmount(struct mntent *mp, long vfsflags, char *filteropts)
 	noac = 0;
 	nordirplus = 0;
 	retry = 10000;		/* 10000 minutes ~ 1 week */
-	tcp = 0;
+	tcp = 1;			/* nfs-utils uses tcp per default */
 
 	mountprog = MOUNTPROG;
 	mountvers = 0;