Fix some regressions caused by r369553 on old versions of Debian and Ubuntu
It was causing some errors like:

Encoding error:
'ascii' codec can't decode byte 0xe2 in position 341: ordinal not in range(128)
The full traceback has been saved in /tmp/sphinx-err-y2fq4dtb.log, if you want to report the issue to the developers.

llvm-svn: 369644
diff --git a/llvm/docs/CommandGuide/llvm-ranlib.rst b/llvm/docs/CommandGuide/llvm-ranlib.rst
index 314a330..ec4a133 100644
--- a/llvm/docs/CommandGuide/llvm-ranlib.rst
+++ b/llvm/docs/CommandGuide/llvm-ranlib.rst
@@ -12,7 +12,7 @@
 -----------
 
 :program:`llvm-ranlib` is an alias for the :doc:`llvm-ar <llvm-ar>` tool that
-generates an index for an archive. It can be used as a replacement for GNU’s
+generates an index for an archive. It can be used as a replacement for GNU's
 :program:`ranlib` tool.
 
 Running :program:`llvm-ranlib` is equivalent to running ``llvm-ar s``.