minor changes in modules/svtools.nf

structuralvariants/nextflow/modules/svtools.nf

 process SVTOOLS {
-  tag "svtools"
+  tag { "svtools" }
   container 'quay.io/biocontainers/svtools:0.5.1--py_0'
-  
+
   input:
     path input
 
@@ -15,4 +15,4 @@ process SVTOOLS {
     svtools vcftobedpe -i \$i -o \$(echo \${i%.*} | sed 's/vcf/bed/g')
   done
   """
-}
\ No newline at end of file
+}