fix(config): care tilde in include.path config

Author: mihyaeru21

git/config.py

@@ -386,6 +386,8 @@ def read(self):
             # We expect all paths to be normalized and absolute (and will assure that is the case)
             if self._has_includes():
                 for _, include_path in self.items('include'):
+                    if '~' in include_path:
+                        include_path = os.path.expanduser(include_path)
                     if not os.path.isabs(include_path):
                         if not close_fp:
                             continue