tv xmonad: reformat build-depends

tv/5pkgs/haskell/xmonad-tv/src/xmonad-tv.cabal

@@ -9,19 +9,19 @@ cabal-version: >=1.10
 executable xmonad
   main-is: main.hs
   build-depends:
-    aeson,
-    base,
-    bytestring,
-    containers,
-    directory,
-    extra,
-    filepath,
-    template-haskell,
-    th-env,
-    unix,
-    X11,
-    xmonad,
-    xmonad-contrib
+      base
+    , X11
+    , aeson
+    , bytestring
+    , containers
+    , directory
+    , extra
+    , filepath
+    , template-haskell
+    , th-env
+    , unix
+    , xmonad
+    , xmonad-contrib
   other-modules:
     Shutdown
   default-language: Haskell2010