fix(form-radio): Add missing classes in button mode (bootstrap-vue#779)

tmorehouse · web-flow · commit ed4f4ef80b9a · 2017-08-09T19:29:32.000-03:00
diff --git a/lib/components/form-radio.vue b/lib/components/form-radio.vue
@@ -89,7 +89,8 @@
             },
             btnGroupClasses() {
                 return [
-                    this.size ? `button-group-${this.size}` : null,
+                    'btn-group',
+                    this.size ? `btn-group-${this.size}` : null,
                     this.stacked ? 'btn-group-vertical' : ''
                  ];
             },
