Merge branch 'ab/fetch-tags-noclobber'

Test and doc clean-ups.

* ab/fetch-tags-noclobber:
pull doc: fix a long-standing grammar error
fetch tests: correct a comment "remove it" -> "remove them"
push tests: assert re-pushing annotated tags
push tests: add more testing for forced tag pushing
push tests: fix logic error in "push" test assertion
push tests: remove redundant 'git push' invocation
fetch tests: change "Tag" test tag to "testTag"

diff --cc t/t5510-fetch.sh
Simple merge

diff --cc t/t5516-fetch-push.sh
Simple merge