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-rwxr-xr-xversion.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/version.sh b/version.sh
index 5f97f6d5ff..69a10ea1c5 100755
--- a/version.sh
+++ b/version.sh
@@ -15,7 +15,7 @@ fi
# no version number found
test $revision || revision=UNKNOWN
-test "$3" && revision=$revision-$3
+test -n "$3" && revision=$revision-$3
NEW_REVISION="#define FFMPEG_VERSION \"$revision\""
OLD_REVISION=`cat version.h 2> /dev/null`