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authorScott Prager <splinterofchaos@gmail.com>2015-05-03 09:25:53 -0400
committerScott Prager <splinterofchaos@gmail.com>2015-05-29 13:12:12 -0400
commit412d246be71bd99cb4edde4e6f984b0b0d91bcd9 (patch)
tree01307051583b9cf2faf56778a9bd88e00d2a2122 /src/nvim/diff.c
parentfa0f1222212704c93ab828b876bda5e9e1cb507e (diff)
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getenv: return NULL if empty #2574
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().
Diffstat (limited to 'src/nvim/diff.c')
-rw-r--r--src/nvim/diff.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/nvim/diff.c b/src/nvim/diff.c
index 7c1a9de623..6e2b3056e4 100644
--- a/src/nvim/diff.c
+++ b/src/nvim/diff.c
@@ -808,7 +808,7 @@ static void diff_file(char_u *tmp_orig, char_u *tmp_new, char_u *tmp_diff)
/* We don't want $DIFF_OPTIONS to get in the way. */
if (os_getenv("DIFF_OPTIONS")) {
- vim_setenv("DIFF_OPTIONS", "");
+ os_unsetenv("DIFF_OPTIONS");
}
/* Build the diff command and execute it. Always use -a, binary