Exclude docs/analyzer/ from the default Sphinx build.

This paves the way for converting the analyzer docs to Sphinx (by
setting up a nested Sphinx tree in this directory).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171424 91177308-0d34-0410-b5e6-96231b3b80d8

docs/conf.py

@@ -64,7 +64,7 @@ release = '3.3'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-exclude_patterns = ['_build']
+exclude_patterns = ['_build', 'analyzer']
 
 # The reST default role (used for this markup: `text`) to use for all documents.
 #default_role = None