Fix an incorrect auto-correct for Style/MethodCallWithArgsParentheses

[koic]

This PR fixes the following incorrect auto-correct for Style/MethodCallWithArgsParentheses with Style/RescueModifier.

% cat example.rb
do_something arg rescue nil

% bundle exec rubocop -a --only
Style/MethodCallWithArgsParentheses,Style/RescueModifier
(snip)

Inspecting 1 file
C

Offenses:

example.rb:1:1: C: [Corrected] Style/MethodCallWithArgsParentheses: Use
parentheses for method calls with arguments.
do_something arg rescue nil
^^^^^^^^^^^^^^^^
example.rb:1:1: C: [Corrected] Style/RescueModifier: Avoid using rescue
in its modifier form.
do_something arg rescue nil
^^^^^^^^^^^^^^^^^^^^^^^^^^^

1 file inspected, 2 offenses detected, 2 offenses corrected

Before

Auto-corrected to invalid syntax.

% cat example.rb
begin
  do_something(arg
rescue
  nil
end)

% ruby -c example.rb
example.rb:3: syntax error, unexpected `rescue', expecting ')'
rescue
example.rb:5: syntax error, unexpected ')', expecting end-of-input

After

Auto-corrected to valid syntax.

% cat example.rb
begin
  do_something(arg)
rescue
  nil
end

---

Before submitting the PR make sure the following are checked:

• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Wrote good commit messages.
• Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.
• Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.

[bbatsov]

Thanks!