remove extra .zip in placeholder

Author: danielhep

lib/manager/components/CreateFeedSource.js

@@ -205,7 +205,7 @@ export default class CreateFeedSource extends Component<Props, State> {
                     disabled={!model.deployable}
                     name={'filename'}
                     onChange={this._onInputChange('filename')}
-                    placeholder='e.g., agency_bundle.zip'
+                    placeholder='e.g., agency_bundle'
                     value={model.filename}
                   />
                   <FormControl.Feedback />