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-rw-r--r--libavdevice/caca.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavdevice/caca.c b/libavdevice/caca.c
index 2cd9e56a96..4ea34bbfbd 100644
--- a/libavdevice/caca.c
+++ b/libavdevice/caca.c
@@ -102,7 +102,8 @@ static int caca_write_header(AVFormatContext *s)
list_dither_antialias(c);
} else {
av_log(s, AV_LOG_ERROR,
- "Invalid value '%s', for 'list_dither' option\n",
+ "Invalid argument '%s', for 'list_dither' option\n"
+ "Argument must be one of 'algorithms, 'antialiases', 'charsets', 'colors'\n",
c->list_dither);
return AVERROR(EINVAL);
}