Go 1.16.15 (released 2022-03-03) includes a security fix to the regexp/syntax package[0], as well as bug fixes to the compiler, runtime, the go command, and the net package. See the Go 1.16.15 milestone[1] on the upstream issue tracker for details. [0] CVE-2022-24921 and https://go.dev/issue/51112. [2] https://github.com/golang/go/issues?q=milestone%3AGo1.16.15+label%3ACherryPickApproved * gnu/packages/golang.scm (go-1.16): Update to 1.16.15. Signed-off-by: Leo Famulari <leo@famulari.name>