lzma: fix overflow in Bcj2Enc.c

crnlib/lzma/Bcj2Enc.c: In function ‘Bcj2Enc_Encode’:
crnlib/lzma/Bcj2Enc.c:488:20: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  488 |         p->temp[i] = src[i];
      |         ~~~~~~~~~~~^~~~~~~~
In file included from crnlib/lzma/Bcj2Enc.c:14:
crnlib/lzma/Bcj2.h:287:8: note: at offset 8 into destination object ‘temp’ of size 8
  287 |   Byte temp[8];
      |        ^

Author: illwieckz

crnlib/lzma/Bcj2Enc.c

@@ -486,7 +486,7 @@ void Bcj2Enc_Encode(CBcj2Enc *p)
       // (0 < p->tempPos <= 4)
       do
         p->temp[i] = src[i];
-      while (++i != rem);
+      while (++i != rem + 1);
     }
     // (p->tempPos <= 4)
     // (p->src == p->srcLim)