Fix two tests that weren't passing on Android or the RI.

Change-Id: I8d3cc490a24211ffaff1bafec835f6dbbd877920
diff --git a/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalCompareTest.java b/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalCompareTest.java
index a977250..df756a1 100644
--- a/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalCompareTest.java
+++ b/harmony-tests/src/test/java/org/apache/harmony/tests/java/math/BigDecimalCompareTest.java
@@ -433,7 +433,7 @@
        int precision = 37;
        RoundingMode rm = RoundingMode.FLOOR;
        MathContext mc = new MathContext(precision, rm);
-       String c = "-929487820944884782312124789.8748298842";
+       String c = "-929487820944884782312124789.8748298843";
        int cScale = 10;
        BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
        BigDecimal res = aNumber.negate(mc);
@@ -463,7 +463,7 @@
        int precision = 46;
        RoundingMode rm = RoundingMode.CEILING;
        MathContext mc = new MathContext(precision, rm);
-       String c = "9294878209448847823.121247898748298842980877981";
+       String c = "9294878209448847823.121247898748298842980877982";
        int cScale = 27;
        BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
        BigDecimal res = aNumber.negate(mc);