Add l4d_fix_prop_los to generalfixes

Author: jensewe

cfg/generalfixes.cfg

@@ -71,6 +71,7 @@ sm plugins load fixes/l4d2_fix_rocket_pull.smx
 sm plugins load optional/l4d_return_thrown_items.smx
 sm plugins load fixes/l4d_prop_touching_rules.smx
 sm plugins load fixes/l4d2_fix_tank_rock_handoff.smx
+sm plugins load fixes/l4d_fix_prop_los.smx
 
 // Anti-Cheat.
 sm plugins load optional/l4d2_block_autoaim.smx // Sort of a cheat..?