docs: eg. -> e.g.

This is how we spell it elsewhere.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29879>

docs/ci/index.rst

@@ -302,7 +302,7 @@ and cancel the rest to avoid wasting resources.
 See ``bin/ci/ci_run_n_monitor.py --help`` for all the options.
 
 The ``--target`` argument takes a regex that you can use to select the
-jobs names you want to run, eg. ``--target 'zink.*'`` will run all the
+jobs names you want to run, e.g. ``--target 'zink.*'`` will run all the
 Zink jobs, leaving the other drivers' jobs free for others to use.
 
 Note that in fork pipelines, GitLab only adds the jobs for the files that have

docs/codingstyle.rst

@@ -83,7 +83,7 @@ Add this to your ``.emacs`` to automatically format any C & C++ file
 
 If ``/usr/share/clang/clang-format.el`` doesn't exist, look through the
 files in the package providing ``clang-format`` in your distro. If you
-can't find anything (eg. on Debian/Ubuntu), refer to `this StackOverflow
+can't find anything (e.g. on Debian/Ubuntu), refer to `this StackOverflow
 answer <https://stackoverflow.com/questions/59690583/how-do-you-use-clang-format-on-emacs-ubuntu/59850773#59850773>`__
 to install clang-format through Emacs instead.
 

docs/envvars.rst

@@ -401,7 +401,7 @@ Core Mesa environment variables
    - ``DRI_PRIME=vendor_id:device_id``: selects the first GPU matching these ids.
 
    For Vulkan it's possible to append ``!``, in which case only the selected GPU
-   will be exposed to the application (eg: DRI_PRIME=1!).
+   will be exposed to the application (e.g.: DRI_PRIME=1!).
 
    .. note::