commit doc: document that -c, -C, -F and --fixup with -m error

Document that providing any of -c, -C, -F and --fixup along with -m will result in an error. Some variant of this has been errored about explicitly since 0c091296c0 ("git-commit: log parameter updates.", 2005-08-08), but the documentation was never updated to reflect this. Wording-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Dec 22, 2017 at 16:00 UTC f55e84fff9b53e532a874f39384a3bcbb9292f28
1 file changed +3
Documentation/git-commit.txt
+3
@@ -144,6 +144,9 @@ OPTIONS
144 Use the given <msg> as the commit message.
145 If multiple `-m` options are given, their values are
146 concatenated as separate paragraphs.
147 ++
148 +The `-m` option is mutually exclusive with `-c`, `-C`, `-F`, and
149 +`--fixup`.
150
151 -t <file>::
152 --template=<file>::