reiserfscore: fix uninitialized variable warning in print_indirect_item

This patch fixes the following warning:
prints.c:403:20: warning: ‘num’ may be used uninitialized in this function [-Wmaybe-uninitialized]

Signed-off-by: Jeff Mahoney <jeffm@suse.com>

reiserfscore/prints.c

@@ -384,7 +384,7 @@ void print_indirect_item (FILE * fp, struct buffer_head * bh, int item_num)
     struct item_head * ih;
     unsigned int j;
     __u32 * unp, prev = INT_MAX;
-    int num;
+    int num = 0;
 
     ih = B_N_PITEM_HEAD (bh, item_num);
     unp = (__u32 *)B_I_PITEM (bh, ih);