Let dune reformat dune files

Author: Leonidas-from-XIV

src/dune

@@ -1,5 +1,6 @@
 (library
-  (name orewa)
-  (public_name orewa)
-  (libraries core async)
-  (preprocess (pps ppx_let ppx_deriving.show ppx_deriving.eq)))
+ (name orewa)
+ (public_name orewa)
+ (libraries core async)
+ (preprocess
+  (pps ppx_let ppx_deriving.show ppx_deriving.eq)))

test/integration/dune

@@ -1,9 +1,12 @@
 (executable
  (name test)
- (preprocess (pps ppx_let ppx_deriving.show ppx_deriving.eq))
+ (preprocess
+  (pps ppx_let ppx_deriving.show ppx_deriving.eq))
  (libraries alcotest alcotest-async core async orewa))
 
 (alias
  (name integration)
- (deps (:test test.exe))
- (action (run %{test} --color=always)))
+ (deps
+  (:test test.exe))
+ (action
+  (run %{test} --color=always)))

test/pipeline_read/dune

@@ -1,4 +1,5 @@
 (executable
  (name pipeline_read)
- (preprocess (pps ppx_let))
+ (preprocess
+  (pps ppx_let))
  (libraries core async orewa))