test-lib: use DIFF definition from GIT-BUILD-OPTIONS

diff --git a/builtin/commit.c b/builtin/commit.c
index c5ab683d5b66d5ad85f53d13d6df71e29cd9234d..30a00e0b633b765221d4717da7af4259c8608254 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -57,7 +57,7 @@ static struct lock_file false_lock; /* used only for partial commits */
 static enum {
        COMMIT_AS_IS = 1,
        COMMIT_NORMAL,
-       COMMIT_PARTIAL,
+       COMMIT_PARTIAL
 } commit_style;
 
 static const char *logfile, *force_author;
@@ -78,7 +78,7 @@ static char *untracked_files_arg, *force_date;
 static enum {
        CLEANUP_SPACE,
        CLEANUP_NONE,
-       CLEANUP_ALL,
+       CLEANUP_ALL
 } cleanup_mode;
 static char *cleanup_arg;
 
@@ -90,7 +90,7 @@ static int null_termination;
 static enum {
        STATUS_FORMAT_LONG,
        STATUS_FORMAT_SHORT,
-       STATUS_FORMAT_PORCELAIN,
+       STATUS_FORMAT_PORCELAIN
 } status_format = STATUS_FORMAT_LONG;
 
 static int opt_parse_m(const struct option *opt, const char *arg, int unset)
@@ -717,7 +717,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 
        if (use_editor) {
                char index[PATH_MAX];
-               const char *env[2] = { index, NULL };
+               const char *env[2] = { NULL };
+               env[0] =  index;
                snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
                if (launch_editor(git_path(commit_editmsg), NULL, env)) {
                        fprintf(stderr,