style(extend-app-start): Keep trimmed reentrancy comment within line length

Single-line form fits the 100-char limit so spotless leaves it unwrapped.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: buenaflor

sentry-android-core/src/main/java/io/sentry/android/core/AppStartExtension.java

@@ -94,7 +94,7 @@ public void finishExtendedAppStart() {
   public @NotNull ISpan getExtendedAppStartSpan() {
     try (final @NotNull ISentryLifecycleToken ignored = lock.acquire()) {
       final @Nullable ISpan span = extendedSpan;
-      // Read the finish date, not isFinished() — see getExtendedEndTime() for the reentrancy reason.
+      // Read the finish date, not isFinished(); see getExtendedEndTime() for why.
       if (span != null && span.getFinishDate() == null) {
         return span;
       }