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getenv: return NULL if empty #2574

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Making an environment variable empty can be a way of unsetting it for
platforms that don't support unsetenv(). In most cases, we treat empty
variables as having been unset. For all others, use os_env_exists().
This commit is contained in:
Scott Prager
2015-05-03 09:25:53 -04:00
parent fa0f122221
commit 412d246be7
10 changed files with 67 additions and 60 deletions
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src/nvim/message.c
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@@ -743,7 +743,7 @@ void ex_messages(exarg_T *eap)
msg_hist_off = TRUE;
s = os_getenv("LANG");
if (s != NULL && *s != NUL)
if (s)
msg_attr((char_u *)
_("Messages maintainer: Bram Moolenaar <Bram@vim.org>"),
hl_attr(HLF_T));