Fixbug: can't find bcftools

tasks/VEP.wdl

@@ -22,6 +22,8 @@ task VEP {
     set -e
     nt=$(nproc)
 
+    source /etc/profile
+
     awk -F'\t' '{if(($1~"^#")||($1!~"^#" && $7=="PASS")){print $0}}' ${vcf} > ${sample_id}.vcf
     
     # Judge the SAMPLE info of vcf file