t1410-reflog.sh: avoid suppressing git's exit code in pipelines #28912

Job	Run time
config	11s
fuzz smoke test	1m 10s
win+Meson build	4m 5s
win build	5m 3s
documentation	7m 35s
win+VS build	0s
rust-analysis	1m 49s
osx-reftable (macos-14)	32m 1s
static-analysis	6m 19s
sparse	3m 42s
osx-clang (macos-14)	40m 41s
osx-meson (macos-14)	42m 0s
osx-gcc (macos-14)	29m 48s
linux-sha256 (ubuntu:rolling)	29m 11s
linux-breaking-changes (ubuntu:rolling)	18m 25s
linux-asan-ubsan (ubuntu:rolling)	1h 13m 51s
linux-reftable (ubuntu:rolling)	25m 0s
fedora-breaking-changes-meson (fedora:latest)	19m 33s
linux-leaks (ubuntu:rolling)	1h 1m 36s
linux-TEST-vars (ubuntu:20.04)	24m 22s
almalinux-8 (almalinux:8)	19m 27s
linux-reftable-leaks (ubuntu:rolling)	59m 16s
linux-musl-meson (alpine:latest)	19m 1s
linux-meson (ubuntu:rolling)	24m 39s
debian-11 (debian:11)	22m 18s
linux32 (i386/ubuntu:20.04)	6h 0m 3s
win+VS test	-1s
win+Meson test (0)	9m 51s
win+Meson test (5)	11m 10s
win+Meson test (6)	29m 21s
win+Meson test (2)	8m 22s
win+Meson test (1)	6m 55s
win+Meson test (8)	9m 26s
win+Meson test (9)	9m 30s
win+Meson test (4)	9m 24s
win+Meson test (3)	46m 48s
win+Meson test (7)	7m 29s
win test (6)	59m 9s
win test (2)	7m 25s
win test (7)	15m 14s
win test (9)	7m 56s
win test (1)	7m 31s
win test (4)	9m 58s
win test (3)	11m 9s
win test (8)	6m 52s
win test (0)	10m 4s
win test (5)	9m 27s
	20h 24m 6s

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