feat: add xmllint formatter (#259)

* feat: add xmllint formatter

* doc: shorten xmllint description

---------

Co-authored-by: Steven Arcangeli <506791+stevearc@users.noreply.github.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/lua/conform/formatters/xmllint.lua b/lua/conform/formatters/xmllint.lua
new file mode 100644
index 0000000..3e06400
--- /dev/null
+++ b/lua/conform/formatters/xmllint.lua
@@ -0,0 +1,9 @@
+---@type conform.FileFormatterConfig
+return {
+  meta = {
+    url = "http://xmlsoft.org/xmllint.html",
+    description = "Despite the name, xmllint can be used to format XML files as well as lint them.",
+  },
+  command = "xmllint",
+  args = { "--format", "-" },
+}