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Just generated devise views and found in the generated erb.html:
<%- if controller_name != 'sessions' %>
<%= link_to "Sign in", new_session_path(resource_name) %><br />
<% end -%>
What does <%- %> .. <% -%>, I know it is a monkey’s question, but I don’t know which keyword to search..so I came to the help of the invincible Stackoverflow..
Eats the whitespace so the rendered HTML looks nicer.