fixed typo and remove env dump

sendxmpp.sh

@@ -5,8 +5,8 @@
 [ -z $PLUGIN_PASSWORD ] && [ -n $SENDXMPP_PASSWORD ] && PLUGIN_PASSWORD="${SENDXMPP_PASSWORD}"
 
 # check if all required fields are set
-[ -z "$PLUGIN_USERNAME" ] && echo "missing password or sendxmpp_password secret" && exit 1
-[ -z "$PLUGIN_PASSWORD" ] && echo "missing username or sendxmpp_username secret" && exit 1
+[ -z "$PLUGIN_USERNAME" ] && echo "missing username or sendxmpp_username secret" && exit 1
+[ -z "$PLUGIN_PASSWORD" ] && echo "missing password or sendxmpp_password secret" && exit 1
 [ -z "$PLUGIN_JSERVER" ] && echo "missing jserver" && exit 1
 [ -z "$PLUGIN_RECIPIENT" ] && echo "missing recipient" && exit 1
 
@@ -21,6 +21,4 @@ CMD="sendxmpp \
 	--no-tls-verify
 	${PLUGIN_RECIPIENT}"
 
-env | grep "DRONE_"
-
 echo $MSG | $CMD