Fix default values on attach_file docs
Fix default values on attach_file docs

olivierlacan/capybara,irfanah/capybara,teamcapybara/capybara,twalpole/capybara,teamcapybara/capybara,twalpole/capybara,twalpole/capybara,teamcapybara/capybara,olivierlacan/capybara,jnicklas/capybara,irfanah/capybara,irfanah/capybara,olivierlacan/capybara,jnicklas/capybara,jnicklas/capybara