Don't try v4 mounts unless explicitly requested.

In 1.2.1, mount.nfs tries v4 mounts by default.
We don't want this for SLE11-SP1 as it is a behviour
change and can cause breakage: bnc#557138

---
 utils/mount/stropts.c |    4 ++++
 1 file changed, 4 insertions(+)

--- nfs-utils-1.2.3.orig/utils/mount/stropts.c
+++ nfs-utils-1.2.3/utils/mount/stropts.c
@@ -821,8 +821,12 @@ static int nfs_try_mount(struct nfsmount
 
 	switch (mi->version) {
 	case 0:
+#if 0
+/* We don't want this in SLES11-SP1 as it is a behavioural change and could cause breakage */
+/* Always try v3 first unless v4 was explicitly requested */
 		result = nfs_autonegotiate(mi);
 		break;
+#endif
 	case 2:
 	case 3:
 		result = nfs_try_mount_v3v2(mi);