fix grammar

h2/src/main/org/h2/index/HashIndex.java

@@ -73,7 +73,7 @@ public class HashIndex extends BaseIndex {
         /*
          * Sometimes the incoming search is a similar, but not the same type
          * e.g. the search value is INT, but the index column is LONG. In which
-         * case, we need to convert otherwise the ValueHashMap will not find the
+         * case we need to convert, otherwise the ValueHashMap will not find the
          * result.
          */
         v = v.convertTo(tableData.getColumn(indexColumn).getType());

h2/src/main/org/h2/index/NonUniqueHashIndex.java

@@ -96,7 +96,7 @@ public class NonUniqueHashIndex extends BaseIndex {
         /*
          * Sometimes the incoming search is a similar, but not the same type
          * e.g. the search value is INT, but the index column is LONG. In which
-         * case, we need to convert otherwise the ValueHashMap will not find the
+         * case we need to convert, otherwise the ValueHashMap will not find the
          * result.
          */
         v = v.convertTo(tableData.getColumn(indexColumn).getType());