hg: openjfx/10-dev/rt: 8185011: build.gradle cannot always parse gradle minor version

[philip.race at oracle.com]

Changeset: 6af4716503e1
Author:    prr
Date:      2017-07-21 09:45 -0700
URL:       http://hg.openjdk.java.net/openjfx/10-dev/rt/rev/6af4716503e1

8185011: build.gradle cannot always parse gradle minor version
Reviewed-by: kcr

! build.gradle