Filip Filmar c0a14ebec4 Git versioning flag (flutter/engine#20748)
* [gn] Adds a flag to turn off git hash versioning

Without this flag, it is excessively tedious to build Dart SDK
for local testing on Fuchsia, since Fuchsia runner will reject
a Dart SDK without a matching version.

* [gn] Add flag --no-dart-version-git-info

This flag suppresses the SDK stamping by git hash, which allows
deploying self-built Dart SDK.  Without this flag, it is impossible
to build and deploy a development Dart SDK on Fuchsia.
2020-09-24 14:52:32 -07:00
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