Adjusted go_imports to try and fix import error

Author: andrewmoreno-apryse

PDFTronGo/pdftron.i

@@ -222,10 +222,13 @@
 
 // Ensure necessary imports for error handling code
 %insert(go_imports) %{
-import "errors"
-import "fmt"
+import (
+    "errors"
+    "fmt"
+)
 %}
 
+// Handle exceptions by triggering recoverable panic containing the exception message
 %include "exception.i"
 %exception {
     try {