Merge pull request #263 from Shane-XB-Qian/feat_util_msg_fmt

Feat: util msg fmt

diff --cc autoload/lsp/handlers.vim
Simple merge

diff --cc autoload/lsp/lsp.vim
Simple merge

diff --cc autoload/lsp/lspserver.vim
Simple merge

diff --cc autoload/lsp/util.vim
Simple merge

diff --cc test/clangd_tests.vim
Simple merge