TestIO: fixed performance regression

Author: firewave

test/testio.cpp

@@ -36,6 +36,7 @@ class TestIO : public TestFixture {
 
 private:
     const Settings settings = settingsBuilder().library("std.cfg").library("windows.cfg").library("qt.cfg").build();
+    Settings settings1 = settingsBuilder().library("std.cfg").library("windows.cfg").library("qt.cfg").build();
 
     void run() override {
         TEST_CASE(coutCerrMisusage);
@@ -86,7 +87,6 @@ class TestIO : public TestFixture {
         // Clear the error buffer..
         errout.str("");
 
-        Settings settings1 = settings;
         settings1.severity.clear();
         settings1.severity.enable(Severity::warning);
         settings1.severity.enable(Severity::style);