[FFmpeg-cvslog] configure: update copyright year

[Lynne]

ffmpeg | branch: release/4.2 | Lynne <dev at lynne.ee> | Fri Jan  1 00:00:00 2021 +0100| [a9febd587051f14f991c2033e2120f59bbe30fab] | committer: Michael Niedermayer

configure: update copyright year

(cherry picked from commit 63505fc60a8031ebea824a3e78a07b73c6dc049f)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a9febd587051f14f991c2033e2120f59bbe30fab
---

 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 4963c50dac..56e645e423 100755
--- a/configure
+++ b/configure
@@ -7397,7 +7397,7 @@ cat > $TMPH <<EOF
 #define FFMPEG_CONFIG_H
 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
 #define FFMPEG_LICENSE "$(c_escape $license)"
-#define CONFIG_THIS_YEAR 2020
+#define CONFIG_THIS_YEAR 2021
 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"