Cygwin doesn't like .. through a link, so drop the ..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19076 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Cygwin/Process.cpp b/lib/System/Cygwin/Process.cpp
index 46bcbcc..d1d8628 100644
--- a/lib/System/Cygwin/Process.cpp
+++ b/lib/System/Cygwin/Process.cpp
@@ -12,7 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 // Include the generic Unix implementation
-#include "../Unix/Process.cpp"
+#include "Unix/Process.cpp"
 
 //===----------------------------------------------------------------------===//
 //=== WARNING: Implementation here must contain only Cygwin specific code