Add new option to usage help.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36347 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-config/llvm-config.in.in b/tools/llvm-config/llvm-config.in.in
index bb67e46..5db4eb9 100644
--- a/tools/llvm-config/llvm-config.in.in
+++ b/tools/llvm-config/llvm-config.in.in
@@ -195,6 +195,7 @@
   --libfiles             Fully qualified library filenames for makefile depends.
   --components           List of all possible components.
   --targets-built        List of all targets currently built.
+  --host-target          Target triple used to configure LLVM.
   --build-mode           Print build mode of LLVM tree (e.g. Debug or Release).
 Typical components:
   all                    All LLVM libraries (default).