Change spinstr to match install and uninstall scripts

gravity.sh

@@ -74,7 +74,7 @@ fi
 spinner() {
     local pid=$1
     local delay=0.50
-    local spinstr='|/-\'
+    local spinstr='/-|'
     while [ "$(ps a | awk '{print $1}' | grep "$pid")" ]; do
         local temp=${spinstr#?}
         printf " [%c]  " "$spinstr"