The 1st patch adds a make target to update gnulib to latest and copying files to be in sync (bootstrap and COPYING currently), while the 2nd patch does exactly that - using the new 'make gnulib-sync'.
[PATCH 1/2] maint: provide make target to update gnulib to latest [PATCH 2/2] maint: update gnulib to latest Have a nice day, Berny