The title will be inferred by git from the first line in the comment. For example this
git commit -m "Edit main.c" -m "add function main"
will produce commit with title "Edit main.c" and a detail comment "add function main"
git commit -m "Edit main.c" -m "add function main"^
"in the main call printf"^
"in printf present Hello world"^
Small change Uno mass