lit.py: Fix new test harder for systems that don't use / as os.path.sep

I didn't think about '%{inputs}' having the same problem. This one
should be a fully Windows path name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315779 91177308-0d34-0410-b5e6-96231b3b80d8

Author: jrose-apple

utils/lit/tests/shared-output.py

@@ -1,5 +1,5 @@
 # RUN: rm -rf %t && mkdir -p %t
-# RUN: echo 'lit_config.load_config(config, os.path.join("%{inputs}", "shared-output", "lit.cfg"))' > %t/lit.site.cfg
+# RUN: echo 'lit_config.load_config(config, os.path.join("%S", "Inputs", "shared-output", "lit.cfg"))' > %t/lit.site.cfg
 # RUN: %{lit} %t
 # RUN: FileCheck %s < %t/Output/Shared/SHARED.tmp
 # RUN: FileCheck -check-prefix=NEGATIVE %s < %t/Output/Shared/SHARED.tmp