Use proper Unicode defined characters for the "..." chat continuation sign

From: Severin Meyer <sev.ch@web.de>

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12112 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=3d0b5dff0aa38ab192ac9aebdfe39cd23cfe2ed9
SDL2: Fix dprint spam in the console when toggling vid_vsync on/off

Signed-off-by: terencehill <piuntn@gmail.com>

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12113 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=9973d76822ff8375e07694ea34c812fbbf8ebdbb