Fix typo in a filter name output by LiftoverVcf (#1842)

* One of the filters that LiftoverVcf outputs was misspelled:  Should be "Intervals" instead of "Intevals"
  IndelStraddlesMultipleIntevals -> IndelStraddlesMultipleIntervals 
* fixes #1841

src/main/java/picard/vcf/LiftoverVcf.java

@@ -228,7 +228,7 @@ public class LiftoverVcf extends CommandLineProgram {
      * Filter name to use when an indel cannot be lifted over since it straddles two intervals in a chain which means
      * that it is unclear what are the right alleles to be used.
      */
-    public static final String FILTER_INDEL_STRADDLES_TWO_INTERVALS = "IndelStraddlesMultipleIntevals";
+    public static final String FILTER_INDEL_STRADDLES_TWO_INTERVALS = "IndelStraddlesMultipleIntervals";
 
     /**
      * Filters to be added to the REJECT file.
@@ -584,4 +584,4 @@ private void tryToAddVariant(final VariantContext vc, final ReferenceSequence re
             addAndTrack(vc, source);
         }
     }
-}
+}