get rid of eval (use readarray)

profile.d/rain.sh

@@ -597,7 +597,9 @@ rainbow()
     local frame_sleep
     frame_sleep=$(_rain_normalize_speed "$_raw_speed") || frame_sleep=0.040
 
-    eval set -- "$PARSED"
+    local -a _pargs=()
+    readarray -td '' _pargs < <(printf '%s' "$PARSED" | xargs printf '%s\0')
+    set -- "${_pargs[@]}"
     while true; do
         case "$1" in
             -h|--help)