Removed trailing spaces.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@917270 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/math/stat/descriptive/summary/Product.java

@@ -167,7 +167,7 @@ public class Product extends AbstractStorelessUnivariateStatistic implements Ser
         }
         return product;
     }
-    
+
     /**
      * <p>Returns the weighted product of the entries in the input array.</p>
      *

src/main/java/org/apache/commons/math/stat/descriptive/summary/Sum.java

@@ -166,7 +166,7 @@ public class Sum extends AbstractStorelessUnivariateStatistic implements Seriali
         }
         return sum;
     }
-    
+
     /**
      * The weighted sum of the entries in the the input array.
      * <p>