Fix rt.sh -n option to work with new rt.conf MACHINES format

tests/rt.sh

@@ -34,8 +34,15 @@ rt_single() {
     [[ ${#line} == 0 ]] && continue
     [[ $line == \#* ]] && continue
 
-    if [[ $line =~ COMPILE && $line =~ ${MACHINE_ID} ]]; then
-      compile_line=$line
+    if [[ $line == COMPILE* ]] ; then
+      MACHINES=$(echo $line | cut -d'|' -f3 | sed -e 's/^ *//' -e 's/ *$//')
+      if [[ ${MACHINES} == '' ]]; then
+        compile_line=$line
+      elif [[ ${MACHINES} == -* ]]; then
+        [[ ${MACHINES} =~ ${MACHINE_ID} ]] || compile_line=$line
+      elif [[ ${MACHINES} == +* ]]; then
+        [[ ${MACHINES} =~ ${MACHINE_ID} ]] && compile_line=$line
+      fi
     fi
 
     if [[ $line =~ RUN ]]; then
@@ -771,6 +778,7 @@ else
   [[ ${KEEP_RUNDIR} == false ]] && rm -rf ${RUNDIR_ROOT}
   [[ ${ROCOTO} == true ]] && rm -f ${ROCOTO_XML} ${ROCOTO_DB} *_lock.db
   [[ ${TEST_35D} == true ]] && rm -f tests/cpld_bmark*_20*
+  [[ ${SINGLE_NAME} != '' ]] && rm -f rt.conf.single
 fi
 
 date >> ${REGRESSIONTEST_LOG}