#747 Typos and inconsistent formation in run.log

[Sworddragon]

I'm using LXSession 0.5.2 and in ~/.cache/lxsession/LXDE/run.log I'm seeing that the line "** Message: environement.vala:59: desktop_environnement XDG_CURRENT_DESKTOP" does have a typo on the words environement.vala (affecting every message of this type) and desktop_environnement. Also the colons seems to be a little inconsistent in the userdefined part of the messages as some of them have a space before and after the colon but others only have a space before or after the colon.