Update runtime files
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index df5c888..25b0f4c 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -401,7 +401,7 @@
" Let: {{{2
" ===
syn keyword vimLet let unl[et] skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
-VimFoldh syn region vimLetHereDoc matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\|eval\>\)\=\s*\z(\L\S*\)' matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'
+VimFoldh syn region vimLetHereDoc matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\s\+\)\=\%(eval\s\+\)\=\z(\L\S*\)' matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'
" Abbreviations: {{{2
" =============