Lets install the manual page with install-clang!  Radar 6838692


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70529 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile b/Makefile
index 86fb6e5..058eabc 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@
 
 ifeq ($(MAKECMDGOALS),install-clang)
   DIRS := tools/clang/tools/driver tools/clang/tools/clang-cc \
-	tools/clang/lib/Headers
+	tools/clang/lib/Headers tools/clang/docs
   OPTIONAL_DIRS :=
   NO_INSTALL = 1
 endif