Don't end a file name with a dot. It looks odd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187124 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp
index b6c1dd8..2f19bb2 100644
--- a/unittests/Support/Path.cpp
+++ b/unittests/Support/Path.cpp
@@ -213,6 +213,7 @@
   int FD2;
   SmallString<64> TempPath2;
   ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
+  ASSERT_TRUE(TempPath2.endswith(".temp"));
   ASSERT_NE(TempPath.str(), TempPath2.str());
 
   fs::file_status A, B;
@@ -230,6 +231,10 @@
   ASSERT_NO_ERROR(fs::exists(Twine(TempPath2), TempFileExists));
   EXPECT_FALSE(TempFileExists);
 
+  SmallString<64> TempPath3;
+  ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3));
+  ASSERT_FALSE(TempPath3.endswith("."));
+
   // Create a hard link to Temp1.
   ASSERT_NO_ERROR(fs::create_hard_link(Twine(TempPath), Twine(TempPath2)));
   bool equal;