Update std-specify-language-standard-version.md

Update the date, mainly as a test of public repo syncing.

Author: Colin Robertson

docs/build/reference/std-specify-language-standard-version.md

@@ -1,6 +1,6 @@
 ---
 title: "/std (Specify Language Standard Version)"
-ms.date: "11/16/2017"
+ms.date: "11/26/2018"
 f1_keywords: ["/std", "-std", "VC.Project.VCCLCompilerTool.CppLanguageStandard"]
 ms.assetid: 0acb74ba-1aa8-4c05-b96c-682988dc19bd
 ---