hg: jdk/jdk: 8238918: idea.sh should work with both mercurial and git repos

[roger.riggs at oracle.com]

Changeset: 370f25f90d1f
Author:    rriggs
Date:      2020-02-12 09:38 -0500
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/370f25f90d1f

8238918: idea.sh should work with both mercurial and git repos
Reviewed-by: erikj, mcimadamore, ehelin, lancea

! bin/idea.sh
! make/idea/template/vcs.xml