Make "-fs ss" mean "make output file of size equals or less than ss" instead of current "make output file of size less than ss".
Also use it to make MP3 tests more readable (using -fs xxx where xxx isthe requested output size, not something slightly lower)....
fix fate breakage, 10l to me (too much copy and pasting)
Originally committed as revision 24881 to svn://svn.ffmpeg.org/ffmpeg/trunk
MP3 float decoder FATE tests
Originally committed as revision 24880 to svn://svn.ffmpeg.org/ffmpeg/trunk