RFR(S), SA, warnings from b116 for hotspot.agent.src.share.native: JNI exception pending

[Dmitry Samersoff]

Please review the small fix.

http://cr.openjdk.java.net/~dsamersoff/JDK-8028773/webrev.01/

Added more missed exception checks to sadis.c

-- 
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.