consider removing the empty colon (`:`) when message is empty

[marco-m]

Hello,

consider the case when you don't really have a message, just a list of k/v pairs:

log.Debug("", "dbVersion", dbVersion)

this will print

2022-04-12T21:24:54+0200 [DEBUG] myprog: : dbVersion=0

I would like instead to see simply:

2022-04-12T21:24:54+0200 [DEBUG] myprog: dbVersion=0

What do you think?

[evanphx]

Agreed!

[marco-m]

thanks @evanphx !

[marco-m]

hello @evanphx, I am confused.

I realized that commit 78f517c is actually on branch f-no-colon, which is unmerged, while this issue is closed.
Since the issue is closed and there is no associated PR, is the f-no-colon branch risking to be forgotten?

Thanks :-)

[evanphx]

That was weird of me. I'll get that moved over now.

[marco-m]

Thanks!