t0000: do not get self-test disrupted by environment warnings

diff --git a/preload-index.c b/preload-index.c
index 71cd2437a3b33b343696bf96067603e8dc9e4464..a850e197c29db6bdffe7c167329e1ee12842ae50 100644 (file)
--- a/preload-index.c
+++ b/preload-index.c
@@ -5,6 +5,7 @@
 #include "pathspec.h"
 #include "dir.h"
 #include "fsmonitor.h"
+#include "config.h"
 
 #ifdef NO_PTHREADS
 static void preload_index(struct index_state *index,
@@ -84,7 +85,7 @@ static void preload_index(struct index_state *index,
                return;
 
        threads = index->cache_nr / THREAD_COST;
-       if ((index->cache_nr > 1) && (threads < 2) && getenv("GIT_FORCE_PRELOAD_TEST"))
+       if ((index->cache_nr > 1) && (threads < 2) && git_env_bool("GIT_TEST_PRELOAD_INDEX", 0))
                threads = 2;
        if (threads < 2)
                return;