Some mistakes in translatiable strings

[Göran Uddeborg]

While translating coreutils 5.1.0 to Swedish I came across these:

    #: src/chmod.c:171 src/chown-core.c:193 src/du.c:345
    #, c-format
    msgid "%s"

Marking this for translation seems a bit overambitious.  It's not much
I can do about it, I believe. :-)

    #: src/ptx.c:38
    msgid "F. Pinard"

Looking in the source there is a comment immediately above this one
obviously aimed at us translators.  For some reason, it didn't follow
into the po file.  You might want to investigate why.