Add missing '"'

llvm-svn: 77416
diff --git a/clang/lib/Frontend/PlistDiagnostics.cpp b/clang/lib/Frontend/PlistDiagnostics.cpp
index 65b3a75..827b968 100644
--- a/clang/lib/Frontend/PlistDiagnostics.cpp
+++ b/clang/lib/Frontend/PlistDiagnostics.cpp
@@ -346,7 +346,7 @@
   // Write the plist header.
   o << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
   "<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" "
-  "http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"
+  "\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"
   "<plist version=\"1.0\">\n";
   
   // Write the root object: a <dict> containing...