Workflow with svn:

1. Edit some files.

2. svn commit -m "commit message" (ok, I add an svn up && before, but I consider that one step).

done

Workflow with git:

1. Edit some files

2. git commit

3. Review the message to see which files I actually want to add, if there is anything that needs to go into git ignore, etc.

4. Edit .gitignore as necessary

5. git add *

6. git commit -m "commit message"

7. git push

So for simple cases you have 3 times as many steps, for more complex cases you have more steps. Note that I usually push/pull from my own github repo and not a central one because that avoids a lot of other hassle (and then use pull requests for managing inter-repo changes, something github has done a nice job with).

Additionally absent this you have a significant likelihood that you end up with various files that aren't a part of your build environment (generated makefiles, backups of generated makefiles, built packages, etc) accidently pushed out to your central repo.