Duplicated entry in /etc/hosts

src/freedombone

   fi
   echo "$DEFAULT_DOMAIN_NAME" > /etc/hostname
   hostname $DEFAULT_DOMAIN_NAME
-  sed -i "s/127.0.1.1.*/127.0.1.1       $DEFAULT_DOMAIN_NAME/g" /etc/hosts
-  echo "127.0.1.1  $DEFAULT_DOMAIN_NAME" >> /etc/hosts
+  if grep -q "127.0.1.1" /etc/hosts; then
+      sed -i "s/127.0.1.1.*/127.0.1.1       $DEFAULT_DOMAIN_NAME/g" /etc/hosts
+  else
+      echo "127.0.1.1  $DEFAULT_DOMAIN_NAME" >> /etc/hosts
+  fi
   echo 'set_your_domain_name' >> $COMPLETION_FILE
 }
 
   sed -i 's|/var/log.*||g' /etc/tripwire/twpol.txt
   # Ignore /etc/tripwire
   if ! grep -q "!/etc/tripwire" /etc/tripwire/twpol.txt; then
-	  sed -i '\|/etc\t\t->.*|a\        !/etc/tripwire;' /etc/tripwire/twpol.txt
+          sed -i '\|/etc\t\t->.*|a\        !/etc/tripwire;' /etc/tripwire/twpol.txt
   fi
   # Avoid logging the changed database
   sed -i 's|$(TWETC)/tw.pol.*||g' /etc/tripwire/twpol.txt