Use cstdio instead of stdio.h

llvm-svn: 188678
diff --git a/clang/tools/libclang/CXCompilationDatabase.cpp b/clang/tools/libclang/CXCompilationDatabase.cpp
index b5e3980..76e8924 100644
--- a/clang/tools/libclang/CXCompilationDatabase.cpp
+++ b/clang/tools/libclang/CXCompilationDatabase.cpp
@@ -1,7 +1,7 @@
 #include "clang-c/CXCompilationDatabase.h"
 #include "CXString.h"
 #include "clang/Tooling/CompilationDatabase.h"
-#include <stdio.h>
+#include <cstdio>
 
 using namespace clang;
 using namespace clang::tooling;