df: do not filter remote filesystem

[Fridolin Pokorny]

Hi,

I am proposing a simple patch to disable a remote filesystem filtering. This 
issue was reported as a bug [1]. The filtering is based on device id which 
seems to be confusing when using remote filesystems such as nfs.

Have a nice day!
Fridolin Pokorny

[1] https://bugzilla.redhat.com/show_bug.cgi?id=920806

diff --git a/src/df.c b/src/df.c
index 3ef5d33..26a0ad2 100644
--- a/src/df.c
+++ b/src/df.c
@@ -635,7 +635,7 @@ filter_mount_list (bool devices_only)
         {
           /* If we've already seen this device...  */
           for (devlist = device_list; devlist; devlist = devlist->next)
-            if (devlist->dev_num == buf.st_dev)
+            if (! me->me_remote && devlist->dev_num == buf.st_dev)
               break;
 
           if (devlist)