git: openjdk/mobile: 8242522: Minor LingeredApp improvements

[duke]

Changeset: 8a7ff65d
Author:    Alex Menkov <amenkov at openjdk.org>
Date:      2020-04-29 16:02:56 +0000
URL:       https://git.openjdk.java.net/mobile/commit/8a7ff65d

8242522: Minor LingeredApp improvements

Reviewed-by: lmesnik, cjplummer

! test/hotspot/jtreg/serviceability/attach/AttachNegativePidTest.java
! test/jdk/sun/tools/jhsdb/heapconfig/TmtoolTestScenario.java
! test/jdk/sun/tools/jinfo/JInfoTest.java
! test/lib/jdk/test/lib/apps/LingeredApp.java
! test/lib/jdk/test/lib/process/OutputBuffer.java