pandoc 1.15.1

Closes Homebrew/homebrew#45077.

Signed-off-by: Xu Cheng <xucheng@me.com>

Formula/pandoc.rb

@@ -5,8 +5,8 @@ class Pandoc < Formula
 
   desc "Swiss-army knife of markup format conversion"
   homepage "http://pandoc.org"
-  url "https://hackage.haskell.org/package/pandoc-1.15.0.6/pandoc-1.15.0.6.tar.gz"
-  sha256 "d950968142526d5a765af7dfb26b47c3f60d4f883aa9d9eab668614179f1ed46"
+  url "https://hackage.haskell.org/package/pandoc-1.15.1.1/pandoc-1.15.1.1.tar.gz"
+  sha256 "a70e0af56c294dbb1ba646df24f90b81542d060ec7167f70ff2b873ed7ed6d5e"
 
   head "https://github.com/jgm/pandoc.git"
 
@@ -29,6 +29,7 @@ class Pandoc < Formula
       cabal_install "--prefix=#{prefix}"
     end
     cabal_clean_lib
+    (bash_completion/"pandoc").write `#{bin}/pandoc --bash-completion`
   end
 
   test do