message: avoid dependency on samtools version in test
diff: @@ -7,7 +7,7 @@ PATH=../bin:$PATH # for freebayes
  PATH=../scripts:$PATH # for freebayes-parallel
  PATH=../vcflib/bin:$PATH # for vcf binaries used by freebayes-parallel
  -plan tests 20
  +plan tests 21
  is $(echo "$(comm -12 <(cat tiny/NA12878.chr22.tiny.giab.vcf | grep -v "^#" | cut -f 2 | sort) <(freebayes -f tiny/q.fa tiny/NA12878.chr22.tiny.bam | grep -v "^#" | cut -f 2 | sort) | wc -l) >= 13" | bc) 1 "variant calling recovers most of the GiAB variants in a test region"
  