Merge pull request #2535 from kkkkkt/remove-unused-variable

removed unused variable in range_beg_len

src/range.c

@@ -237,13 +237,13 @@ mrb_range_include(mrb_state *mrb, mrb_value range)
 static mrb_bool
 range_beg_len(mrb_state *mrb, mrb_value range, mrb_int *begp, mrb_int *lenp, mrb_int len, mrb_bool trunc)
 {
-  mrb_int beg, end, b, e;
+  mrb_int beg, end;
   struct RRange *r = mrb_range_ptr(range);
 
   if (mrb_type(range) != MRB_TT_RANGE) return FALSE;
 
-  beg = b = mrb_int(mrb, r->edges->beg);
-  end = e = mrb_int(mrb, r->edges->end);
+  beg = mrb_int(mrb, r->edges->beg);
+  end = mrb_int(mrb, r->edges->end);
 
   if (beg < 0) {
     beg += len;