tdf#112689:Replace chained O(U)StringBuffer::append() with operator+

Change-Id: Ieea40ab9cd15260b02222174b9ac389d8c9f387b
Reviewed-on: https://gerrit.libreoffice.org/65746
Tested-by: Jenkins
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>

binaryurp/source/bridge.cxx

@@ -888,10 +888,8 @@ OUString Bridge::getName() {
 }
 
 OUString Bridge::getDescription() {
-    OUStringBuffer b(name_);
-    b.append(':');
-    b.append(connection_->getDescription());
-    return b.makeStringAndClear();
+    OUString b = name_ + ":" + connection_->getDescription();
+    return b;
 }
 
 void Bridge::dispose() {