[FFmpeg-cvslog] swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes

ffmpeg | branch: release/4.1 | Michael Niedermayer | Mon May 13 12:50:38 2019 +0200| [0a0f052868d33b7660bdebe47cf612ffdfee9be2] | committer: Michael Niedermayer swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes Some formats use longer names than 12. Signed-off-by: Michael Niederm

[FFmpeg-cvslog] swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes

ffmpeg | branch: master | Michael Niedermayer | Mon May 13 12:50:38 2019 +0200| [9d269301f017657c3ae2e95a411317640acd39a8] | committer: Michael Niedermayer swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes Some formats use longer names than 12. Signed-off-by: Michael Niedermayer