Better variable name conventions

Author: Andy Delcambre

ext/rugged/rugged_tree.c

@@ -124,17 +124,17 @@ static VALUE rb_git_tree_entrycount_recursive(int argc, VALUE* argv, VALUE self)
 	Data_Get_Struct(self, git_tree, tree);
 	int error;
 	struct rugged_treecount_cb_payload payload;
-	VALUE rbLimit;
+	VALUE rb_limit;
 
-	if (rb_scan_args(argc, argv, "01", &rbLimit) == 0)
-		rbLimit = Qnil;
+	if (rb_scan_args(argc, argv, "01", &rb_limit) == 0)
+		rb_limit = Qnil;
 
 	payload.limit = -1;
 	payload.count = 0;
 
-	if (!NIL_P(rbLimit)) {
-		Check_Type(rbLimit, T_FIXNUM);
-		payload.limit = FIX2INT(rbLimit);
+	if (!NIL_P(rb_limit)) {
+		Check_Type(rb_limit, T_FIXNUM);
+		payload.limit = FIX2INT(rb_limit);
 	}