From b7f1885fab1cce27f3104b792ed07300b9561bf1 Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Tue, 7 Nov 2017 02:15:34 +0100
Subject: [PATCH] health.vim: env var may be defined but empty #7498

---
 runtime/autoload/health/nvim.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtime/autoload/health/nvim.vim b/runtime/autoload/health/nvim.vim
index f8beaf6a0f..3d871faf5d 100644
--- a/runtime/autoload/health/nvim.vim
+++ b/runtime/autoload/health/nvim.vim
@@ -174,7 +174,7 @@ function! s:check_terminal() abort
         \ .(empty(kbs_entry) ? '? (not found)' : kdch1_entry))
   endif
   for env_var in ['XTERM_VERSION', 'VTE_VERSION', 'TERM_PROGRAM', 'COLORTERM', 'SSH_TTY']
-    if !empty(eval('$'.env_var))
+    if !exists('$'.env_var)
       call health#report_info(printf("$%s='%s'", env_var, eval('$'.env_var)))
     endif
   endfor