class RuboCop::Cop::Style::MultilineIfThen

end
elsif cond then b
if cond then a
@example If statements can contain ‘then` on the same line:
end
if cond then
@example This is considered bad practice:
Checks for uses of the `then` keyword in multi-line if statements.

def autocorrect(node) 

def autocorrect(node)
  lambda do |corrector|
    corrector.remove(
      range_with_surrounding_space(node.loc.begin, :left)
    )
  end
end

def non_modifier_then?(node) 

def non_modifier_then?(node)
  node.loc.begin && node.loc.begin.source_line =~ NON_MODIFIER_THEN
end

def on_normal_if_unless(node) 

def on_normal_if_unless(node)
  return unless non_modifier_then?(node)
  add_offense(node, :begin, format(MSG, node.keyword))
end