remove redundant newline character

Author: ApaDoctor

_pytest/python.py

@@ -86,7 +86,6 @@ def pytest_addoption(parser):
                   default=False, help="disable string escape non-ascii"
                                       " characters, might cause unwanted side effects")
 
-
     group.addoption("--import-mode", default="prepend",
                     choices=["prepend", "append"], dest="importmode",
                     help="prepend/append to sys.path when importing test modules, "