zip_close fails after delete entries

[HellsCoder]

Clear empty files in archive function, and zip_close after execute function fail

struct zip_t* zip = zip_open(LU_LOG_PATH, 0, 'd');
int count = zip_entries_total(zip);
char* entries[50];
int entryIndex = 0;
for (int i = 0; i < count; i++) {
zip_entry_openbyindex(zip, i);
  if (zip->entry.uncomp_size <= 0) {
	  char* entryReplaced = zip->entry.name;
	  entries[entryIndex] = malloc(MAX_PATH);
	  memcpy(entries[entryIndex], entryReplaced, strlen(entryReplaced) + 1);
	  entryIndex++;
  }
}
zip_entries_delete(zip, entries, entryIndex);
ftell(zip->archive.m_pState->m_pFile); //<-- ftell fails... zip->archive.m_pState->m_pFile was closed
zip_close(zip);; //<-- zip_close fails by fails _ftelli64, because file stream is closed

[HellsCoder]

Modify zip.c for bypass this problem #267