Fix botched "CC:" parameter passing in JS_DocmailForm().

testing/resources/javascript/app_mailmsg.in

 {{header}}
 {{object 1 0}} <<
   /Type /Catalog
   /Pages 2 0 R
   /OpenAction 10 0 R
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 endobj
 {{object 2 0}} <<
   /Type /Pages
   /Count 1
@@ skipping 16 matching lines @@
 {{object 10 0}} <<
   /Type /Action
   /S /JavaScript
   /JS 11 0 R
 >>
 endobj
 % JS program to exexute
 {{object 11 0}} <<
 >>
 stream
-app.alert("This test passes if alert() logs output under the test utility.");
-app.alert("message", 1, 2, "title");
-app.alert({"cMsg": "message", "cTitle": "title"});
-app.alert({"cMsg": "message", "cTitle": "title", "nIcon": 3, "nType": 4});
-app.alert(undefined);
-app.alert(null);
-app.alert(true);
-app.alert(false);
-app.alert(42);
-app.alert([1, 2, 3]);
-app.alert([1, 2, {"color": "red"}]);
-app.alert({"color": "red"}, 5, 6, "title"); 
+app.alert("This test passes if mailMsg() logs output under the test utility.");
+app.mailMsg(true);
+app.mailMsg(false, "user@example.com");
+app.mailMsg(false, "user@example.com", "cc@example.com",
+            "bcc@example.com", "subject", "body");
+app.mailMsg({"bUI": true});
+app.mailMsg({"bUI": false, "cTo": "user@example.com"});
+app.mailMsg({"bUI": false,
+             "cTo": "user@example.com",
+             "cCc": "cc@example.com",
+             "cBcc": "bcc@example.com",
+             "cSubject": "subject",
+             "cMsg": "body"});
 try {
-  app.alert();
+  app.mailMsg();
 } catch (e) {
   app.alert("Caught expected error " + e);
 }
 try {
-  app.alert({});
+  app.mailMsg(false);
 } catch (e) {
   app.alert("Caught expected error " + e);
 }
 try {
-  app.alert({"color": "red", "size": 42});
+  app.mailMsg({"color": "red", "size": 42});
 } catch (e) {
   app.alert("Caught expected error " + e);
 }
 endstream
 endobj
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 %%EOF