In the po file for the F12 Release Notes (POT created 2009-10-28 00:29+0000) there is this message:

#. Tag: screen
#: FileSystems.xml:33
#, no-c-format
msgid ""
"$ less test.txt\n"
" \"test.dump\" may be a binary file.  See it anyway?"

There are two issues here:

1) While the argument is "test.txt", less gives a message about "test.dump".

2) (very minor) There is an extra space before the error message.