Fix another bug

sbin/install.sh

@@ -14,7 +14,7 @@ _log_file='/dev/null'
 
 centos_release=$(cat /etc/centos-release)
 case "${centos_release}" in
-    "CentOS Linux release 6."*)
+    "CentOS release 6."*)
         syvinit_script='/etc/init.d/save_io_stats'
         if [[ ! -f "${syvinit_script}" ]]; then
             _log 1 "Installing System V init script"