doc/filter_design.txt: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
doc/filters.texi: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/ac3enc_template.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/ac3tab.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/avcodec.h: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/bink.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/bintext.h: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/dv.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/lpc.h: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/mpegvideo.h: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/rv40.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/xsubenc.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavutil/file_open.c: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavutil/opt.h: Fix duplicate words

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>