commit e2789ce

index_list() and index_list_desc() always return a list, even if empty.

 1@@ -485,7 +485,7 @@ int index_len(const char *fn)
 2 xs_list *index_list(const char *fn, int max)
 3 /* returns an index as a list */
 4 {
 5-    xs_list *list = NULL;
 6+    xs_list *list = xs_list_new();
 7     FILE *f;
 8     int n = 0;
 9 
10@@ -493,7 +493,6 @@ xs_list *index_list(const char *fn, int max)
11         flock(fileno(f), LOCK_SH);
12 
13         char line[256];
14-        list = xs_list_new();
15 
16         while (n < max && fgets(line, sizeof(line), f) != NULL) {
17             if (line[0] != '-') {
18@@ -513,7 +512,7 @@ xs_list *index_list(const char *fn, int max)
19 xs_list *index_list_desc(const char *fn, int skip, int show)
20 /* returns an index as a list, in reverse order */
21 {
22-    xs_list *list = NULL;
23+    xs_list *list = xs_list_new();
24     FILE *f;
25     int n = 0;
26 
27@@ -521,7 +520,6 @@ xs_list *index_list_desc(const char *fn, int skip, int show)
28         flock(fileno(f), LOCK_SH);
29 
30         char line[256];
31-        list = xs_list_new();
32 
33         /* move to the end minus one entry (or more, if skipping entries) */
34         if (!fseek(f, 0, SEEK_END) && !fseek(f, (skip + 1) * -33, SEEK_CUR)) {