Fixes off-by-one error in a message about test sharding (by David Glasser).

src/gtest.cc

@@ -2716,9 +2716,10 @@ void PrettyUnitTestResultPrinter::OnTestIterationStart(
   }
 
   if (internal::ShouldShard(kTestTotalShards, kTestShardIndex, false)) {
+    const Int32 shard_index = Int32FromEnvOrDie(kTestShardIndex, -1);
     ColoredPrintf(COLOR_YELLOW,
-                  "Note: This is test shard %s of %s.\n",
-                  internal::posix::GetEnv(kTestShardIndex),
+                  "Note: This is test shard %d of %s.\n",
+                  static_cast<int>(shard_index) + 1,
                   internal::posix::GetEnv(kTestTotalShards));
   }
 

test/gtest_output_test_golden_lin.txt

@@ -697,7 +697,7 @@ Note: Google Test filter = *DISABLED_*
 [==========] 1 test from 1 test case ran.
 [  PASSED  ] 1 test.
 Note: Google Test filter = PassingTest.*
-Note: This is test shard 1 of 2.
+Note: This is test shard 2 of 2.
 [==========] Running 1 test from 1 test case.
 [----------] Global test environment set-up.
 [----------] 1 test from PassingTest