refactor: refine log message

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>

diff --git a/scripts/docker-upgrade.sh b/scripts/docker-upgrade.sh
index 4ecc788d6785ab26207f026ae20c605869b998d7..a6af757ece7ea18f0ede5d739e51b8f05ac0067a 100755 (executable)
--- a/scripts/docker-upgrade.sh
+++ b/scripts/docker-upgrade.sh
@@ -89,7 +89,7 @@ send_telegram_message() {
     if [ -z "${FREQTRADE_CONFIG_JSON:-}" ]; then
       FREQTRADE_CONFIG_JSON=$(jsonc_to_json "$FREQTRADE_CONFIG" 2>/dev/null || echo "")
     fi
-    printf '%s' "$FREQTRADE_CONFIG_JSON" | jq empty 2>/dev/null || { echo_timestamped "Error: invalid config JSON"; exit 1; }
+    printf '%s' "$FREQTRADE_CONFIG_JSON" | jq empty 2>/dev/null || { echo_timestamped "Error: invalid JSON configuration"; exit 1; }
 
     freqtrade_telegram_enabled=$(printf '%s' "$FREQTRADE_CONFIG_JSON" | jq -r '.telegram.enabled // "false"' 2>/dev/null || echo "false")
     if [ "$freqtrade_telegram_enabled" = "false" ]; then