Make array declarations consistent

src/md5.c

@@ -206,7 +206,7 @@ void rhash_md5_update(md5_ctx *ctx, const unsigned char* msg, size_t size)
  * @param ctx the algorithm context containing current hashing state
  * @param result calculated hash in binary form
  */
-void rhash_md5_final(md5_ctx *ctx, unsigned char* result)
+void rhash_md5_final(md5_ctx *ctx, unsigned char result[16])
 {
 	unsigned index = ((unsigned)ctx->length & 63) >> 2;
 	unsigned shift = ((unsigned)ctx->length & 3) * 8;

src/sha256.c

@@ -211,7 +211,7 @@ void rhash_sha256_update(sha256_ctx *ctx, const unsigned char *msg, size_t size)
  * @param ctx the algorithm context containing current hashing state
  * @param result calculated hash in binary form
  */
-void rhash_sha256_final(sha256_ctx *ctx, unsigned char* result)
+void rhash_sha256_final(sha256_ctx *ctx, unsigned char result[32])
 {
 	size_t index = ((unsigned)ctx->length & 63) >> 2;
 	unsigned shift = ((unsigned)ctx->length & 3) * 8;