Merge version 1:3.9.1-4+rpi1 and 1:3.9.1-5 to produce 1:3.9.1-5+rpi1

diff --cc debian/changelog
index 3a0a9fe9b0ae79a96969e4841b34729c9eaa1efd,1b594396581870bf564dd1020d081c4598a1f64b..19df5b391da33f34ac54fb5f9b2aa6a6009da7c2
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,23 -1,8 +1,29 @@@
- llvm-toolchain-3.9 (1:3.9.1-4+rpi1) stretch-staging; urgency=medium
++llvm-toolchain-3.9 (1:3.9.1-5+rpi1) stretch-staging; urgency=medium
 +
 +  [changes brought forward from llvm-toolchain-3.8 1:3.8-2+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Sat, 14 May 2016 21:43:35 +0000]
 +  * Cleanup .pyc files in clean target.
 +  * Add a hack to the cmake based build to force armv6 (unfortunately the cmake
 +    based build relies on config.guess which assumes you want to build for the
 +    hardware you are running on).
 +  * Add -DCOMPILER_RT_BUILD_BUILTINS=OFF to disable parts of compiler-rt that
 +    are broken on lower arm architectures.
 +
 +  [changes introduced in llvm-toolchain-3.9 1:3.9.1-1 by Peter Michael Green]
 +  * disable testsuite (using a method that is hopefully less likely to cause diff conflicts than previously).
 +  * Remove -march=armv7-a in compiler-rt/cmake/config-ix-base.cmake
 +  * Clean up debian/usr in clean target.
 +  * Clean up clang/tools/*-3.9 in clean target.
 +  * Clean up stray *3.9.vim files
 +  * Clean up clang/tools/scan-build/man/scan-build-3.9.1 and utils/vim/llvm-3.9-vimrc
 +  * Clean up debian/*.install
 +
-  -- Raspbian forward porter <root@raspbian.org>  Sat, 11 Mar 2017 04:48:17 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Sat, 25 Mar 2017 22:30:41 +0000
++
+ llvm-toolchain-3.9 (1:3.9.1-5) unstable; urgency=medium
+ 
+   * Fix the incorrect symlink to scan-build-py (Closes: #856869)
+ 
+  -- Sylvestre Ledru <sylvestre@debian.org>  Sun, 12 Mar 2017 10:01:10 +0100
  
  llvm-toolchain-3.9 (1:3.9.1-4) unstable; urgency=medium