CLN: juggles doc url to fit within 80 char per line

Author: deniederhut

pandas/core/generic.py

@@ -3359,7 +3359,8 @@ def __setattr__(self, name, value):
                 if (self.ndim > 1) and (is_list_like(value)):
                     warnings.warn("Pandas doesn't allow Series to be assigned "
                                   "into nonexistent columns - see "
-                                  "https://pandas.pydata.org/pandas-docs/stable""/indexing.html#attribute-access")
+                                  "https://pandas.pydata.org/pandas-docs/"
+                                  "stable/indexing.html#attribute-access")
                 object.__setattr__(self, name, value)
 
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