s/Void/void.

llvm-svn: 183866
diff --git a/llvm/lib/Support/Windows/Program.inc b/llvm/lib/Support/Windows/Program.inc
index 7ca194c..cdc3373 100644
--- a/llvm/lib/Support/Windows/Program.inc
+++ b/llvm/lib/Support/Windows/Program.inc
@@ -170,7 +170,7 @@
 
 }
 
-static bool Execute(Void *&Data,
+static bool Execute(void *&Data,
                     const Path& path,
                     const char** args,
                     const char** envp,