fixed marcxml-online.flux: ${obj} -> ${o} in template

Author: mgeipel

examples/read/marcxml-online/marcxml-online.flux

@@ -1,9 +1,9 @@
-default idn = "1021191485";
-
-idn|
-template("https://portal.dnb.de/opac.htm?method=requestMarcXml&idn=${obj}")| 
-open-http|
-decode-xml|
-handle-marcxml|
-encode-formeta(style="multiline")|
+default idn = "1021191485";
+
+idn|
+template("https://portal.dnb.de/opac.htm?method=requestMarcXml&idn=${o}")| 
+open-http|
+decode-xml|
+handle-marcxml|
+encode-formeta(style="multiline")|
 write("stdout");