fix(termux_language_server): do not call `on_dir()` unconditionally #4168

Problem:
The `root_dir()` function for `termux_language_server`
introduced in #4161 calls `on_dir()` unconditionally.
Leading to `termux_language_server` attaching to all buffers.

Solution:
Make the call conditional.

1 files changed, 3 insertions, 1 deletions

diff --git a/lsp/termux_language_server.lua b/lsp/termux_language_server.lua
index 608527a2..3294ae05 100644
--- a/lsp/termux_language_server.lua
+++ b/lsp/termux_language_server.lua
@@ -26,6 +26,8 @@ return {
     }
     local fname = vim.api.nvim_buf_get_name(bufnr)
     local match = util.root_pattern(patterns)(fname)
-    on_dir(match and (vim.fs.root(match, '.git') or match))
+    if match then
+      on_dir(vim.fs.root(match, '.git') or match)
+    end
   end,
 }