md5: code shrink; and use 64-byte temp buf, not 128-byte.

function                                             old     new   delta
md5_hash                                             111     108      -3
md5_end                                              129     125      -4
md5_hash_block                                       459     454      -5
filter_rename_config                                 250     244      -6
md5_crypt                                            587     578      -9
popmaildir_main                                      828     816     -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-39)             Total: -39 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 1031cad8b..f406fc6f1 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1540,7 +1540,7 @@ typedef struct md5_ctx_t {
         uint32_t C;
         uint32_t D;
         uint64_t total;
-        char buffer[128];
+        char buffer[64];
 } md5_ctx_t;
 #else
 /* libbb/md5prime.c uses a bit different one: */