Overview of changes in GLib 2.51.3
==================================

* Bugs fixed:
 771997 gchecksum: Add SHA-384 support
 778422 gsubprocesslauncher: Clarify the behavior of set_environ()
 778581 gdbus-codegen: Fix -Wconversion warning
 778801 gdbus-codegen: Add --outdir flag
 778991 Plug a mem leak in gdbusauth
 779183 g_io_extension_point_get_extensions should check for NULL pointer

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