[jdk11u-dev] RFR: 8251549: Update docs on building for Git

Fri Aug 6 13:39:39 UTC 2021

Hi,

Now that OpenJDK 11u is fully on Git we should update the docs to no longer refer to Mercurial and use Git instead. The JDK 16 patch doesn't apply clean due to some differences in the file (e.g. referring to JDK 8 vs. JDK 11 in head). `doc/building.html` is the result of running `make update-build-docs` when the `building.md` file has the relevant changes.

Thoughts?

-------------

Commit messages:
 - Backport 042734cc5b17302a8f2ecdf577511bd6d5ec5e22

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/205/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=205&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8251549
  Stats: 285 lines in 2 files changed: 44 ins; 75 del; 166 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/205.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/205/head:pull/205

PR: https://git.openjdk.java.net/jdk11u-dev/pull/205