Fixes for @jbrockmendel review

pandas/io/clipboard/__init__.py

@@ -95,7 +95,7 @@ def _stringifyText(text) -> str:
     acceptedTypes = (str, int, float, bool)
     if not isinstance(text, acceptedTypes):
         raise PyperclipException(
-            f"only str, int, float, and bool values"
+            f"only str, int, float, and bool values "
             f"can be copied to the clipboard, not {type(text).__name__}"
         )
     return str(text)