DEV: Update more deprecated Font Awesome icon names (#77)

Author: tyb-talks

.discourse-compatibility

@@ -1,3 +1,4 @@
+< 3.4.0.beta2-dev: 9b5d5b16aa800d8d43dfe3f871594bf68f69cf02
 < 3.4.0.beta1-dev: 7dff8ccbcda763519cc1b94806b701af56875c3d
 < 3.3.0.beta1-dev: ac4dff5325b541b0337bad27c60afcfd954a2f0c
 3.1.999: 84d3a6c7781260dff46ee2d3b7bebc99066c5493

javascripts/discourse/components/ucd-warning.hbs

@@ -12,7 +12,7 @@
 <div class="action-buttons">
   <DButton
     @action={{this.goBackAndFix}}
-    @icon="pencil-alt"
+    @icon="pencil"
     class="btn-primary"
     @label={{theme-prefix "warning_modal.fix_post"}}
   />