truncate buffer before reading empty files

If readfile() reads an empty file, fgets() won't truncate the buffer
and it'll still contain the contents of the previously read file.

[lh: fixed similar issue in ui-repolist.c]

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 1 insertions, 0 deletions

@@ -23,6 +23,7 @@ time_t read_agefile(char *path)
 
         if (!(f = fopen(path, "r")))
                 return -1;
+        buf[0] = 0;
         if (fgets(buf, sizeof(buf), f) == NULL)
                 return -1;
         fclose(f);