Corrections for getExpiringPollsNotNotified() in votingmodel #1797

Job	Run time
macOS 12 native [GOAL install] [GUI] [no depends]	14m 40s
ARM [GOAL install] [buster]	2m 10s
Win32	3m 27s
Lint	50s
Win64	4m 37s
i386 Linux [GOAL install] [focal]	2m 9s
x86_64 Linux [GOAL install] [GUI] [focal] [no depends]	14m 32s
x86_64 Linux [GOAL install] [GUI] [bionic] [no depends]	11m 41s
macOS 10.14 [GOAL deploy] [GUI] [no tests] [focal]	9m 9s
	1h 3m 15s

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