Correct ineffassign

[gliptak]

Please read https://github.com/etcd-io/etcd/blob/master/CONTRIBUTING.md#contribution-flow.

[codecov-io]

Codecov Report

Merging #12793 (49d19ef) into master (8469108) will decrease coverage by 17.78%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master   #12793       +/-   ##
===========================================
- Coverage   73.04%   55.25%   -17.79%     
===========================================
  Files         427      406       -21     
  Lines       33163    32036     -1127     
===========================================
- Hits        24224    17703     -6521     
- Misses       7032    12486     +5454     
+ Partials     1907     1847       -60     

Flag	Coverage Δ
all	55.25% <ø> (-17.79%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/mvcc/backend/read_tx.go	82.45% <ø> (-0.31%)	⬇️
pkg/pathutil/path.go	0.00% <0.00%> (-100.00%)	⬇️
raft/quorum/quorum.go	0.00% <0.00%> (-100.00%)	⬇️
raft/tracker/state.go	0.00% <0.00%> (-100.00%)	⬇️
client/v3/ordering/util.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/tlsutil/cipher_suites.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/transport/sockopt_unix.go	0.00% <0.00%> (-100.00%)	⬇️
client/v3/naming/endpoints/endpoints.go	0.00% <0.00%> (-100.00%)	⬇️
...ver/proxy/grpcproxy/adapter/lock_client_adapter.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/report/report.go	0.00% <0.00%> (-95.58%)	⬇️
... and 212 more

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