golang-ci revive.exported doesn't work

[okJiang]

situation

we have been enabled revive.exported

pd/.golangci.yml

Lines 119 to 125 in 9af28fc

	- name: exported
	severity: warning
	disabled: false
	exclude: [""]
	arguments:
	- "checkPrivateReceivers"
	- "sayRepetitiveInsteadOfStutters"

but it doesn't work, such as

pd/pkg/core/region_tree.go

Lines 446 to 452 in 9af28fc

	func (t *regionTree) TotalWriteRate() (bytesRate, keysRate float64) {
	if t.length() == 0 {
	return 0, 0
	}
	return t.totalWriteBytesRate, t.totalWriteKeysRate
	}

How to fix it

add

issues:
  include:
    - EXC0012
    - EXC0014

ref u-root/uio#14 (comment)

[okJiang]

ref #4322