fix calls to fmt::format with non-consteval format strings

Summary: Newly a thing with `fmt` v8.

Differential Revision: D33995623

fbshipit-source-id: 4560f1498a8f8253ab572105a441b735d53d776f

folly/experimental/test/AutoTimerTest.cpp

@@ -58,7 +58,7 @@ TEST(TestAutoTimer, HandleBasicClosure) {
   timer.log("foo");
   ASSERT_EQ("foo", StubLogger::m);
   ASSERT_EQ(2, StubLogger::t);
-  timer.logFormat("bar {}", 5e-2);
+  timer.logFormat(fmt::runtime("bar {}"), 5e-2);
   ASSERT_EQ("bar 0.05", StubLogger::m);
   ASSERT_EQ(0, StubLogger::t);
 }
@@ -70,7 +70,7 @@ TEST(TestAutoTimer, HandleBasic) {
   timer.log("foo");
   ASSERT_EQ("foo", StubLogger::m);
   ASSERT_EQ(2, StubLogger::t);
-  timer.logFormat("bar {}", 5e-2);
+  timer.logFormat(fmt::runtime("bar {}"), 5e-2);
   ASSERT_EQ("bar 0.05", StubLogger::m);
   ASSERT_EQ(0, StubLogger::t);
 }