uml: add missing space

Add missing space between merged string constants.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NJeff Dike <jdike@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/um/drivers/vde_user.c

@@ -80,7 +80,7 @@ void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init)
 
 	vpri->args = kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL);
 	if (vpri->args == NULL) {
-		printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args"
+		printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args "
 		       "allocation failed");
 		return;
 	}