Merge branch 'maint' * maint: gnupload: moved to gnulib sync: gitlog-to-changelog from gnulib upstream test defs: backport optimized 'using_gmake' implementation tests: unify some tests on "make -n", reducing duplication vala: use "$(am__cd) $(srcdir)", not "cd $(srcdir)" + Extra edits: * tests/maken3.test: Carry over (with necessary adjustments) the code from maken4.test that determines whether $MAKE supports the special '.MAKE' target.