- Fix broken preprocessor directives.

- Use sysctl(3) instead of procfs(5) when we need executable path from PID.

MFH:		2015Q3

java/openjdk8/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	openjdk
 PORTVERSION=	${JDK_MAJOR_VERSION}.${JDK_UPDATE_VERSION}.${JDK_BUILD_NUMBER:S/^0//}
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	java devel
 MASTER_SITES=	http://download.java.net/openjdk/jdk${JDK_MAJOR_VERSION}/promoted/b${DIST_BUILD_NUMBER}/:jdk \
 		https://adopt-openjdk.ci.cloudbees.com/job/jtreg/${JTREG_JENKINS_BUILD}/artifact/:jtreg \