Fix off-by-one error in test_util_make_environment

diff --git a/src/test/test_util.c b/src/test/test_util.c
index 4fabc22ce4e2abdd74c6c77375f26b3422c0302c..c7540e81a6917359fa9b905c08e196f39112e235 100644 (file)
--- a/src/test/test_util.c
+++ b/src/test/test_util.c
@@ -1945,7 +1945,8 @@ test_util_make_environment(void *ptr)
     "HOME=/home/foozer\000"
     "PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/bin\000"
     "\000";
-  size_t expected_windows_env_block_len = sizeof(expected_windows_env_block);
+  size_t expected_windows_env_block_len =
+    sizeof(expected_windows_env_block) - 1;
 
   smartlist_t *env_vars = smartlist_new_from_text_lines(env_vars_string);
   smartlist_t *env_vars_sorted = smartlist_new();