Fix left shift signed overflow

lib/xmltok.c:1407:11: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
lib/xmltok.c:1409:16: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
1 file changed
tree: 614e6f80d0f909e767140108e2a33137fc0f9540
  1. .gitignore
  2. expat/
  3. htdocs/
  4. testdata/