cleanup whitespace and commas

* [] is now [ ]
* {} is now { }
* commas in arglists go at end of line not beginning

In short, I ran the whole thing through nixfmt-rfc-style but only
accepted about 30% of its changes. I might grow accustomed to more
of it over time

pkgs/write-ash-script/default.nix

@@ -1,13 +1,15 @@
+{ writeScript, lib }:
+name:
 {
-  writeScript
-, lib
-}
-: name : { runtimeInputs ? [] } : text : writeScript name ''
-#!/bin/sh
-set -o errexit
-set -o nounset
-set -o pipefail
+  runtimeInputs ? [ ],
+}:
+text:
+writeScript name ''
+  #!/bin/sh
+  set -o errexit
+  set -o nounset
+  set -o pipefail
 
-export PATH="${lib.makeBinPath runtimeInputs}:$PATH"
-${text}
+  export PATH="${lib.makeBinPath runtimeInputs}:$PATH"
+  ${text}
 ''