#11 mountman can't parse output of df from coreutuils 6

[Vaclav Juza]

While in coreutils 5 the output looks like:
>vaclav@delfin(pts/5):~/$ LANGUAGE=C df -k /home
>Filesystem           1K-blocks      Used Available Use% Mounted on
>/dev/sda9             24398772  16096148   8302624  66% /home
in coreutils 6 it looks like (currently in experimental in Debian):
>vaclav@delfin(pts/5):~/$ LANGUAGE=C df -k /home
>/dev/sda9             24398772  16096148   8302624  66% /home
so the header line is missing, and mountman is confused;
in the panel, instead of printing information about disk space,
it prints:
>Mt.Man: working ...
or its translation. In the stderr, krusader prints messages like:
>krusader: ERROR: Error running df command... got [/dev/sda9             24398772  16096148   8302624  66% /home]

[Vaclav Juza]

Do not require the header line of df

[Vaclav Juza]

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Final version of coreutils 6 works fine, no need to work it around.