checkout: document -b/-B to highlight the differences from "git branch"

The existing text read as if "git checkout -b/-B name" were equivalent to "git branch [-f] name", which clearly was not what we wanted to say. Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed Jan 19, 2023 at 09:12 UTC fedb8ea2df0325950285529b6e9e3f65cb227c67
1 file changed +8 -6
Documentation/git-checkout.txt
+8 -6
@@ -146,14 +146,16 @@ on your side branch as `theirs` (i.e. "one contributor's work on top
146 of it").
147
148 -b <new-branch>::
149 - Create a new branch named `<new-branch>` and start it at
150 - `<start-point>`; see linkgit:git-branch[1] for details.
149 + Create a new branch named `<new-branch>`, start it at
150 + `<start-point>`, and check the resulting branch out;
151 + see linkgit:git-branch[1] for details.
152
153 -B <new-branch>::
153 - Creates the branch `<new-branch>` and start it at `<start-point>`;
154 - if it already exists, then reset it to `<start-point>`. This is
155 - equivalent to running "git branch" with "-f"; see
156 - linkgit:git-branch[1] for details.
154 + Creates the branch `<new-branch>`, start it at `<start-point>`;
155 + if it already exists, then reset it to `<start-point>`. And then
156 + check the resulting branch out. This is equivalent to running
157 + "git branch" with "-f" followed by "git checkout" of that branch;
158 + see linkgit:git-branch[1] for details.
159
160 -t::
161 --track[=(direct|inherit)]::