Tweak --version to include the date and time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61378 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp
index 3297810..20c2b8e 100644
--- a/lib/Support/CommandLine.cpp
+++ b/lib/Support/CommandLine.cpp
@@ -1095,6 +1095,7 @@
         cout << " with assertions";
 #endif
         cout << ".\n";
+        cout << "  Built " << __DATE__ << "(" << __TIME__ << ").\n";
   }
   void operator=(bool OptionWasSpecified) {
     if (OptionWasSpecified) {