Update XZ Utils to 5.0.3 (in deps)

src/liblzma/common/index.c

 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       index.c
 /// \brief      Handling of .xz Indexes and some other Stream information
 //
 //  Author:     Lasse Collin
 //
 //  This file has been put into the public domain.
 //  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "index.h"
 #include "stream_flags_common.h"
 
 
 /// \brief      How many Records to allocate at once
 ///
 /// This should be big enough to avoid making lots of tiny allocations
 /// but small enough to avoid too much unused memory at once.
-#define INDEX_GROUP_SIZE 500
+#define INDEX_GROUP_SIZE 512
 
 
 /// \brief      How many Records can be allocated at once at maximum
 #define PREALLOC_MAX ((SIZE_MAX - sizeof(index_group)) / sizeof(index_record))
 
 
 /// \brief      Base structure for index_stream and index_group structures
 typedef struct index_tree_node_s index_tree_node;
 struct index_tree_node_s {
         /// Uncompressed start offset of this Stream (relative to the
@@ skipping 1200 matching lines @@
         }
 
         iter->internal[ITER_STREAM].p = stream;
         iter->internal[ITER_GROUP].p = group;
         iter->internal[ITER_RECORD].s = left;
 
         iter_set_info(iter);
 
         return false;
 }