Bugfix long-standing issue with VCF sorting

Author: bbimber

SequenceAnalysis/src/org/labkey/sequenceanalysis/util/SequenceUtil.java

@@ -452,7 +452,7 @@ public static void sortROD(File input, Logger log, Integer startColumnIdx) throw
         //then sort/append the records
         CommandWrapper wrapper = SequencePipelineService.get().getCommandWrapper(log);
         String cat = isCompressed ? "zcat" : "cat";
-        wrapper.execute(Arrays.asList("/bin/sh", "-c", cat + " '" + input.getPath() + "' | grep -v '^#' | sort -s -V -k1,1f" + (startColumnIdx == null ? "" : " -k" + startColumnIdx + "," + startColumnIdx + "n")), ProcessBuilder.Redirect.appendTo(sorted));
+        wrapper.execute(Arrays.asList("/bin/sh", "-c", cat + " '" + input.getPath() + "' | grep -v '^#' | sort -V -k1,1" + (startColumnIdx == null ? "" : " -k" + startColumnIdx + "," + startColumnIdx + "n")), ProcessBuilder.Redirect.appendTo(sorted));
 
         if (isCompressed)
         {