fixed install script

install

@@ -4,17 +4,14 @@ dir="$(dirname $(readlink -f "${0}"))"
 
 cp "${dir}/git-backup" /usr/local/bin &&
 
-if [ ! -x /etc/cron.d/git-backup ]
+if [ ! -f /etc/git-backup.conf ]
 then
-  if [ ! -x /etc/git-backup.conf ]
-  then
-    cp "${dir}/git-backup.conf" /etc/git-backup.conf
-  fi &&
+  cp "${dir}/git-backup.conf" /etc/git-backup.conf
+fi &&
 
-  if [ ! -x /etc/cron.d/git-backup ]
-  then
-    echo "00 2    * * *   root    git-backup > /dev/null" > /etc/cron.d/git-backup
-  fi &&
+if [ ! -f /etc/cron.d/git-backup ]
+then
+  echo "00 2    * * *   root    git-backup > /dev/null" > /etc/cron.d/git-backup &&
   service cron reload
 fi &&