修改错误提示措辞

template/src/oj/account/change_password.html

@@ -36,7 +36,7 @@
             <div class="form-group">
                 <label for="confirm_password">确认密码</label>
                 <input type="password" class="form-control input-lg" id="confirm_password" name="confirm_password"
-                       placeholder="确认密码" maxlength="30" data-match="#new_password" data-match-error="两个密码不一致" required>
+                       placeholder="确认密码" maxlength="30" data-match="#new_password" data-match-error="两次密码不一致" required>
 
                 <div class="help-block with-errors"></div>
             </div>