The Debian packaging of stylish-haskell is maintained in git, using
the merging workflow described in dgit-maint-merge(7).  There isn't a
patch queue that can be represented as a quilt series.

A detailed breakdown of the changes is available from their canonical
representation - git commits in the packaging repository.  For
example, to see the changes made by the Debian maintainer in the first
upload of upstream version 1.2.3, you could use:

    % git clone https://git.dgit.debian.org/stylish-haskell
    % cd stylish-haskell
    % git log --oneline 1.2.3..debian/1.2.3-1 -- . ':!debian'

(If you have dgit, use `dgit clone stylish-haskell`, rather than plain
`git clone`.)

A single combined diff, containing all the changes, follows.
--- stylish-haskell-0.9.2.2.orig/README.markdown
+++ stylish-haskell-0.9.2.2/README.markdown
@@ -1,8 +1,6 @@
 stylish-haskell
 ===============
 
-[![Build Status](https://img.shields.io/circleci/project/github/jaspervdj/stylish-haskell.svg)](https://circleci.com/gh/jaspervdj/stylish-haskell)
-
 Introduction
 ------------
 
@@ -12,16 +10,6 @@ manually cleaning up import statements e
 
 This tool tries to help where necessary without getting in the way.
 
-Installation
-------------
-
-You can install it using `stack install stylish-haskell` or `cabal install stylish-haskell`.
-
-You can also install it using your package manager:
- * Debian 9 or later: `apt-get install stylish-haskell`
- * Ubuntu 16.10 or later: `apt-get install stylish-haskell`
- * Arch Linux: `pacman -S stylish-haskell`
-
 Features
 --------
 
--- stylish-haskell-0.9.2.2.orig/stylish-haskell.cabal
+++ stylish-haskell-0.9.2.2/stylish-haskell.cabal
@@ -58,7 +58,7 @@ Library
     file-embed       >= 0.0.10 && < 0.1,
     haskell-src-exts >= 1.18   && < 1.22,
     mtl              >= 2.0    && < 2.3,
-    semigroups       >= 0.18   && < 0.20,
+    semigroups       >= 0.18,
     syb              >= 0.3    && < 0.8,
     yaml             >= 0.8.11 && < 0.12
 
