Make update -v moderately verbose

[dbitouze]

When running dot update -v, in addition to:

INFO    Making pull in "...":
INFO        Already up to date.
INFO    Making pull in "...":
INFO        Already up to date.
INFO    Making pull in "...":
INFO        Already up to date.
[...]

we get a lot of lines such as:

INFO Symlink from ... to ... already exists

Would it be possible to make the -v option less verbose by dropping these INFO Symlink [...] lines and, possibly, display them with a -vv more verbose option?

[svetlyak40wt]

Go ahead, implement it!