[8u60] Request for approval backport 6536943: Bogus -Xcheck:jni warning for SIG_INT action for SIGINT in JVM started from non-interactive shell

[Yumin Qi]

Original  changeset:

URL: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/8a4e412576de

jdk9 webrev: http://cr.openjdk.java.net/~minqi/6536943/webrev03
8u60 webrev: http://cr.openjdk.java.net/~minqi/6536943-8u60/webrev/

Bug: https://bugs.openjdk.java.net/browse/JDK-6536943
Tests:  JPRT, manually tested the code in bug link.

Thanks,
Yumin