Add missing bracket to example code

[cypressf]

Difficult to count those with all the java 7 boilerplate!

[codecov]

Codecov Report

Merging #5326 into 2.x will decrease coverage by 0.12%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                2.x    #5326      +/-   ##
============================================
- Coverage     96.09%   95.97%   -0.13%     
+ Complexity     5778     5770       -8     
============================================
  Files           630      630              
  Lines         41146    41146              
  Branches       5714     5714              
============================================
- Hits          39540    39488      -52     
- Misses          633      659      +26     
- Partials        973      999      +26

Impacted Files	Coverage Δ	Complexity Δ
...ava/io/reactivex/observers/SerializedObserver.java	85.05% <0%> (-10.35%)	22% <0%> (-4%)
...ternal/operators/flowable/FlowableSubscribeOn.java	91.52% <0%> (-6.78%)	2% <0%> (ø)
...rnal/operators/flowable/FlowableFlatMapSingle.java	90.76% <0%> (-6.53%)	2% <0%> (ø)
...rnal/subscriptions/DeferredScalarSubscription.java	93.84% <0%> (-4.62%)	27% <0%> (-1%)
...ternal/operators/observable/ObservablePublish.java	91.22% <0%> (-4.39%)	9% <0%> (-1%)
...a/io/reactivex/internal/util/QueueDrainHelper.java	60.28% <0%> (-4.26%)	32% <0%> (-3%)
...rnal/operators/flowable/FlowableTakeLastTimed.java	95.37% <0%> (-3.71%)	2% <0%> (ø)
...internal/operators/completable/CompletableAmb.java	94.91% <0%> (-3.39%)	10% <0%> (-1%)
...ernal/operators/flowable/FlowableFlatMapMaybe.java	92.27% <0%> (-3.39%)	2% <0%> (ø)
...ex/internal/operators/maybe/MaybeTimeoutMaybe.java	95.58% <0%> (-2.95%)	2% <0%> (ø)
... and 35 more

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