hg: code-tools/jtreg: fix git issues

[jonathan.gibbons at oracle.com]

Changeset: deee95d5d8ff
Author:    jjg
Date:      2019-12-02 12:49 -0800
URL:       https://hg.openjdk.java.net/code-tools/jtreg/rev/deee95d5d8ff

fix git issues

+ .gitignore
! make/build-all.sh