Fix local dependant formatting - Solves #1962

Author: pditommaso

modules/nextflow/src/main/groovy/nextflow/container/DockerBuilder.groovy

@@ -117,7 +117,7 @@ class DockerBuilder extends ContainerBuilder<DockerBuilder> {
         result << 'run -i '
 
         if( cpus )
-            result << "--cpus ${String.format("%.1f", cpus)} "
+            result << "--cpus ${String.format(Locale.ROOT, "%.1f", cpus)} "
 
         if( cpuset ) {
             if( legacy )

modules/nextflow/src/main/groovy/nextflow/container/PodmanBuilder.groovy

@@ -109,7 +109,7 @@ class PodmanBuilder extends ContainerBuilder<PodmanBuilder> {
             result << runOptions.join(' ') << ' '
 
         if( cpus ) {
-            result << "--cpus ${String.format("%.1f", cpus)} "
+            result << "--cpus ${String.format(Locale.ROOT, "%.1f", cpus)} "
         }
 
         if( memory ) {

modules/nextflow/src/main/groovy/nextflow/trace/TraceRecord.groovy

@@ -223,10 +223,10 @@ class TraceRecord implements Serializable {
         if( value == null ) return NA
         try {
             if( value instanceof Number )
-                return String.format('%.1f%%', value.toFloat())
+                return String.format(Locale.ROOT, '%.1f%%', value.toFloat())
             else {
                 def x = value.toString().toFloat()
-                return String.format('%.1f%%', x)
+                return String.format(Locale.ROOT, '%.1f%%', x)
             }
 
         }

modules/nf-commons/src/main/nextflow/util/RateUnit.groovy

@@ -115,6 +115,6 @@ class RateUnit {
     }
 
     String toString() {
-        String.format("%.2f", rate) + '/sec'
+        String.format(Locale.ROOT, "%.2f", rate) + '/sec'
     }
 }