fix(tf2c): use -game tf2classified and systemdir tf2classified

The game's installed directory is tf2classified (not tf2c). Using
-game tf2c created a secondary directory with hardcoded absolute
paths in gameinfo.txt. Using tf2classified uses the proper install
with |appid_440| tokens in gameinfo.txt.

lgsm/config-default/config-lgsm/tf2cserver/_default.cfg

@@ -24,7 +24,7 @@ maxplayers="16"
 gslt=""
 
 ## Server Parameters | https://docs.linuxgsm.com/configuration/start-parameters#additional-parameters
-startparameters="-game tf2c -tf_path ${supportdir} -strictportbind -ip ${ip} -port ${port} +clientport ${clientport} +tv_port ${sourcetvport} +map ${defaultmap} +sv_setsteamaccount ${gslt} +servercfgfile ${servercfg} -maxplayers ${maxplayers}"
+startparameters="-game tf2classified -tf_path ${supportdir} -strictportbind -ip ${ip} -port ${port} +clientport ${clientport} +tv_port ${sourcetvport} +map ${defaultmap} +sv_setsteamaccount ${gslt} +servercfgfile ${servercfg} -maxplayers ${maxplayers}"
 
 #### LinuxGSM Settings ####
 
@@ -166,7 +166,7 @@ glibc="2.15"
 # Edit with care
 
 ## Game Server Directories
-systemdir="${serverfiles}/tf2c"
+systemdir="${serverfiles}/tf2classified"
 supportdir="${serverfiles}/tf2"
 executabledir="${serverfiles}"
 executable="./srcds.sh"