Merge branch 'js/test-ln-s-add' into maint

* js/test-ln-s-add: t4011: remove SYMLINKS prerequisite t6035: use test_ln_s_add to remove SYMLINKS prerequisite t3509, t4023, t4114: use test_ln_s_add to remove SYMLINKS prerequisite t3100: use test_ln_s_add to remove SYMLINKS prerequisite t3030: use test_ln_s_add to remove SYMLINKS prerequisite t0000: use test_ln_s_add to remove SYMLINKS prerequisite tests: use test_ln_s_add to remove SYMLINKS prerequisite (trivial cases) tests: introduce test_ln_s_add t3010: modernize style test-chmtime: Fix exit code on Windows