JDK 9 RFR of BigDecimal.sqrt javadoc typo fix

[joe darcy]

Hello,

Please review the patch below to remove an extra "}" from the 
BigDecimal.sqrt javadoc.

Thanks,

-Joe


--- a/src/java.base/share/classes/java/math/BigDecimal.java Wed Jun 01 
15:28:05 2016 -0700
+++ b/src/java.base/share/classes/java/math/BigDecimal.java    Thu Jun 
02 09:15:56 2016 -0700
@@ -2026,7 +2026,7 @@
       * <li> The square root of a number numerically equal to {@code
       * ZERO} is numerically equal to {@code ZERO} with a preferred
       * scale according to the general rule above. In particular, for
-     * {@code ZERO}}, {@code ZERO.sqrt(mc).equals(ZERO)} is true with
+     * {@code ZERO}, {@code ZERO.sqrt(mc).equals(ZERO)} is true with
       * any {@code MathContext} as an argument.
       * </ul>
       *