gzip: default level with ENABLE_FEATURE_GZIP_LEVELS should be 6

Fixes an off-by-one that actually resulted in level 7 being used

Signed-off-by: Daniel Edgecumbe <git@esotericnonsense.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/archival/gzip.c b/archival/gzip.c
index 17341de45..37db347b8 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -2222,7 +2222,7 @@ int gzip_main(int argc UNUSED_PARAM, char **argv)
 #if ENABLE_FEATURE_GZIP_LEVELS
         opt >>= (BBUNPK_OPTSTRLEN IF_FEATURE_GZIP_DECOMPRESS(+ 2) + 1); /* drop cfkvq[dt]n bits */
         if (opt == 0)
-                opt = 1 << 6; /* default: 6 */
+                opt = 1 << 5; /* default: 6 */
         opt = ffs(opt >> 4); /* Maps -1..-4 to [0], -5 to [1] ... -9 to [5] */
         max_chain_length = 1 << gzip_level_config[opt].chain_shift;
         good_match       = gzip_level_config[opt].good;