Corrections to decimal flying circus: round returns a Decimal;

float should have a short repr.

Doc/library/decimal.rst

@@ -187,9 +187,9 @@ floating point flying circus:
    >>> str(a)
    '1.34'
    >>> float(a)
-   1.3400000000000001
-   >>> round(a, 1)     # round() first converts to binary floating point
-   1.3
+   1.34
+   >>> round(a, 1)
+   Decimal('1.3')
    >>> int(a)
    1
    >>> a * 5