Merge pull request #1539 from vivekmahajan/fix-preact-warning

Fix console warning in preact due to  Trans accessing node.children first

src/Trans.js

@@ -12,7 +12,7 @@ function hasChildren(node, checkLength) {
 
 function getChildren(node) {
   if (!node) return [];
-  return node && node.children ? node.children : node.props && node.props.children;
+  return node.props ? node.props.children : node.children;
 }
 
 function hasValidReactChildren(children) {