Use more C++17 features

Mainly structured bindings, inline variables, and class template
argument deduction, plus many more smaller things.

Change-Id: I810d17e0adb470426e4e30c898e03b3140ad052f
diff --git a/tests/daemon/table/strategy-choice.t.cpp b/tests/daemon/table/strategy-choice.t.cpp
index d99ff44..ff6b754 100644
--- a/tests/daemon/table/strategy-choice.t.cpp
+++ b/tests/daemon/table/strategy-choice.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2021,  Regents of the University of California,
+ * Copyright (c) 2014-2022,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -48,9 +48,7 @@
   insertAndGet(const Name& prefix, const Name& instanceName)
   {
     BOOST_REQUIRE(sc.insert(prefix, instanceName));
-    bool isFound;
-    Name foundName;
-    std::tie(isFound, foundName) = sc.get(prefix);
+    auto [isFound, foundName] = sc.get(prefix);
     BOOST_REQUIRE(isFound);
     return foundName;
   }