Correct two zlib tests to use a string, not a const
Indention fix

indent with tab instead of spaces
Merge branch 'pull-request/819'

* pull-request/819:
  Indention fix
Correct two zlib tests to use a string, not a const
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Correct two zlib tests to use a string, not a const
Merge branch 'pull-request/817'

* pull-request/817:
  Correct two zlib tests to use a string, not a const
Merge branch 'PHP-5.6'

* PHP-5.6:
  Correct two zlib tests to use a string, not a const