Update quota2percent_ to V17.0213

fixed some slips

plugins/disk/quota2percent_

@@ -48,10 +48,13 @@ I<<<  ln -s /<path to file>/quota2percent_  quota2percent_sdb1 >>>
 
 =head1 VERSION
 
-17.0210
+17.0213
 
 =head1 HISTORY
 
+V17.0213
+
+  fix    some slips
 V17.0210
 
   add    env.humanid
@@ -88,12 +91,12 @@ GPLv2 (L<http://www.gnu.org/licenses/gpl-2.0.html>)
   if [ "$1" = "autoconf" ]; then
      if ! repquota -V &> /dev/null ; then
         echo "no ('requota' executable is missing)"
-        exit 127
+        exit 0
      fi
 
      if ! df "/dev/${0##*_}" &> /dev/null; then
-        echo "no (device /dev/${0##*_} does not exist!)" >&2
-        exit 128
+        echo "no (device /dev/${0##*_} does not exist!)"
+        exit 0
      fi
 
      echo yes
@@ -193,9 +196,7 @@ GPLv2 (L<http://www.gnu.org/licenses/gpl-2.0.html>)
          Quota=( ${Quotas[$i]} )
          UserName=${Quota[0]}
          Passwd=$(grep "$UserName" /etc/passwd)
-         OLDIFS=$IFS 
          IFS=':' Infos=($Passwd) 
-         IFS=$OLDIFS
          UserInfo=${Infos[4]}
          UserInfo=${UserInfo%%,*}