Merge remote-tracking branch 'rl1987/bug26283'

changes/bug26283

+  o Minor bugfixes (C correctness):
+    - Avoid casting return value of smartlist_len() to double as
+      compiler does not like it when -Wbad-function-cast is on.
+      Fixes bug 26283; bugfix on 0.2.4.10-alpha.

src/or/routerlist.c

@@ -2764,7 +2764,7 @@ frac_nodes_with_descriptors(const smartlist_t *sl,
       if (node_has_any_descriptor(node))
         n_with_descs++;
     });
-    return ((double)n_with_descs) / (double)smartlist_len(sl);
+    return ((double)n_with_descs) / smartlist_len(sl);
   }
 
   present = 0.0;