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Update googletest docs to indicate that RE2 is now used for regexp implementation when building with Bazel and using Abseil.

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PiperOrigin-RevId: 454012698
Change-Id: I3a9df78368ffe3cb7cf3d315001125b97b1aebbe
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Abseil Team 2022-06-09 14:24:43 -07:00 committed by Copybara-Service
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commit b1f84bf176
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@ -482,9 +482,11 @@ TEST_F(FooDeathTest, DoesThat) {
### Regular Expression Syntax
On POSIX systems (e.g. Linux, Cygwin, and Mac), googletest uses the
When built with Bazel and using Abseil, googletest uses the
[RE2](https://github.com/google/re2/wiki/Syntax) syntax. Otherwise, for POSIX
systems (Linux, Cygwin, Mac), googletest uses the
[POSIX extended regular expression](http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html#tag_09_04)
syntax. To learn about this syntax, you may want to read this
syntax. To learn about POSIX syntax, you may want to read this
[Wikipedia entry](http://en.wikipedia.org/wiki/Regular_expression#POSIX_Extended_Regular_Expressions).
On Windows, googletest uses its own simple regular expression implementation. It