Fix Flake8 flagged issues

pip_chill/pip_chill.py

@@ -19,8 +19,8 @@ def get_name_without_version(self):
  Return the name of the package without a version.
  """
  if self.required_by:
- sorted_required_by = sorted(self.required_by)
- return f'# {self.name} # Installed as dependency for {", ".join(sorted_required_by)}'
+ return f'# {self.name} # Installed as dependency for ' \
+  '{", ".join(sorted(self.required_by))}'
  return self.name
 
  def __lt__(self, other):
@@ -38,12 +38,13 @@ def __hash__(self):
  return hash(self.name)
 
  def __repr__(self):
- return f'<{self.__module__}.{self.__class__.__name__} instance "{self.name}">'
+ return f'<{self.__module__}.{self.__class__.__name__} instance "' \
+ '{self.name}">'
 
  def __str__(self):
  if self.required_by:
- sorted_required_by = sorted(self.required_by)
- return f'# {self.name}=={self.version} # Installed as dependency for {", ".join(sorted_required_by)}'
+ return f'# {self.name}=={self.version} # Installed as ' \
+  'dependency for {", ".join(sorted(self.required_by)}'
  return f"{self.name}=={self.version}"