[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

sorts/merge_sort.py

@@ -40,17 +40,17 @@ def merge(left: list, right: list) -> list:
         left_length = len(left)
         right_length = len(right)
         left_index = right_index = 0
-        
+
         while (left_index < left_length) and (right_index < right_length):
             if left[left_index] < right[right_index]:
                 result.append(left[left_index])
                 left_index += 1
             else:
                 result.append(right[right_index])
                 right_index += 1
-                
-        result.extend(left[left_index : ])
-        result.extend(right[right_index : ])
+
+        result.extend(left[left_index:])
+        result.extend(right[right_index:])
         return result
 
     if len(collection) <= 1: