tests: qemucapsprobe: Fix output after switching to jansson

Jansson does not put a newline at the end of formatted JSON strings.
This breaks the qemucapsprobe utility as we need to keep the spacing so
that tests work. Add an explicit newline.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

tests/qemucapsprobemock.c

@@ -76,6 +76,7 @@ qemuMonitorSend(qemuMonitorPtr mon,
         printLineSkipEmpty("\n", stdout);
 
     printLineSkipEmpty(reformatted, stdout);
+    printLineSkipEmpty("\n", stdout);
     VIR_FREE(reformatted);
 
     return realQemuMonitorSend(mon, msg);
@@ -116,6 +117,7 @@ qemuMonitorJSONIOProcessLine(qemuMonitorPtr mon,
             printLineSkipEmpty("\n", stdout);
 
         printLineSkipEmpty(json, stdout);
+        printLineSkipEmpty("\n", stdout);
     }
 
  cleanup: