This is a follow-on to JDK-8231590.
After integrating the fix for JDK-8231590, I noticed that we have references to "Mercurial" or "hg" in the third-party legal files, and in other files. Many of these should be changed to "git", for example, those that refer to the jfx repo on GitHub.
Here is the list of files that refer to Mercurial or hg:
apps/samples/Ensemble8/UPDATING-lucene.txt
modules/javafx.media/src/main/legal/glib.md
modules/javafx.media/src/main/legal/gstreamer.md
modules/javafx.web/src/main/legal/webkit.md
Additionally, the following tool uses Mercurial, but fixing that is out of scope for this bug:
tools/scripts/checkWhiteSpace