change spinner color to test

misc/build.func

@@ -104,7 +104,7 @@ start_spinner() {
 
     {
         while [[ "$SPINNER_ACTIVE" -eq 1 ]]; do
-            printf "\r\e[2K%s %b" "${frames[spin_i]}" "${YW}${SPINNER_MSG}${CL}" >&2
+            printf "\r\e[2K%s %b" "${frames[spin_i]}" "${BL}${SPINNER_MSG}${CL}" >&2
             spin_i=$(((spin_i + 1) % ${#frames[@]}))
             sleep "$interval"
         done