hg: build-infra/jdk8: test on Solaris does not like -e, use -f instead. (Fix "./make/scripts/hgforest.sh: test: argument expected")

[magnus.ihse.bursie at oracle.com]

Changeset: 698f45452b65
Author:    ihse
Date:      2012-10-15 14:14 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/698f45452b65

test on Solaris does not like -e, use -f instead. (Fix "./make/scripts/hgforest.sh: test: argument expected")

! make/scripts/hgforest.sh