Update

indent/dune.vim

@@ -0,0 +1,14 @@
+if exists('g:polyglot_disabled') && index(g:polyglot_disabled, 'ocaml') != -1
+  finish
+endif
+
+" Vim indent file
+" Language: dune
+
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+" dune format-dune-file uses 1 space to indent
+set softtabstop=1 shiftwidth=1 expandtab