Update XZ Utils to 5.0.3 (in deps)

src/liblzma/lzma/lzma_decoder.c

 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       lzma_decoder.c
 /// \brief      LZMA decoder
 ///
 //  Authors:    Igor Pavlov
 //              Lasse Collin
 //
 //  This file has been put into the public domain.
 //  You can do whatever you want with this file.
@@ skipping 638 matching lines @@
                                                 // found. It must not be
                                                 // present if uncompressed
                                                 // size is known.
                                                 if (coder->uncompressed_size
                                                 != LZMA_VLI_UNKNOWN) {
                                                         ret = LZMA_DATA_ERROR;
                                                         goto out;
                                                 }
 
         case SEQ_EOPM:
-                                                // TODO Comment
+                                                // LZMA1 stream with
+                                                // end-of-payload marker.
                                                 rc_normalize(SEQ_EOPM);
                                                 ret = LZMA_STREAM_END;
                                                 goto out;
                                         }
                                 }
                         }
 
                         // Validate the distance we just decoded.
                         if (unlikely(!dict_is_distance_valid(&dict, rep0))) {
                                 ret = LZMA_DATA_ERROR;
@@ skipping 179 matching lines @@
 }
 */
 
 static void
 lzma_decoder_reset(lzma_coder *coder, const void *opt)
 {
         const lzma_options_lzma *options = opt;
 
         // NOTE: We assume that lc/lp/pb are valid since they were
         // successfully decoded with lzma_lzma_decode_properties().
-        // FIXME?
 
         // Calculate pos_mask. We don't need pos_bits as is for anything.
         coder->pos_mask = (1U << options->pb) - 1;
 
         // Initialize the literal decoder.
         literal_init(coder->literal, options->lc, options->lp);
 
         coder->literal_context_bits = options->lc;
         coder->literal_pos_mask = (1U << options->lp) - 1;
 
@@ skipping 178 matching lines @@
         opt->preset_dict_size = 0;
 
         *options = opt;
 
         return LZMA_OK;
 
 error:
         lzma_free(opt, allocator);
         return LZMA_OPTIONS_ERROR;
 }