Some minor cleanup/tuning/commenting

src/client/menu/menu.c

@@ -2352,7 +2352,7 @@ SaveGameCallback(void *self)
 	if (a->generic.localdata[0] == 0)
 	{
 		m_popup_string = "This slot is reserved for\n"
-					"autosaving. Please select\n"
+					"autosaving, so please select\n"
 					"another one.";
 		m_popup_endtime = cls.realtime + 2000;
 		M_Popup();

src/game/g_ai.c

@@ -375,11 +375,6 @@ infront(edict_t *self, edict_t *other)
 
 	AngleVectors(self->s.angles, forward, NULL, NULL);
 
-	if ((self == NULL) || (other == NULL))
-	{
-		return false;
-	}
-
 	VectorSubtract(other->s.origin, self->s.origin, vec);
 	VectorNormalize(vec);
 	dot = DotProduct(vec, forward);

src/game/g_chase.c

@@ -151,7 +151,7 @@ ChaseNext(edict_t *ent)
 	int i;
 	edict_t *e;
 
-    if (!ent)
+	if (!ent)
 	{
 		return;
 	}

src/game/player/hud.c

@@ -203,7 +203,7 @@ BeginIntermission(edict_t *targ)
 }
 
 void
-DeathmatchScoreboardMessage(edict_t *ent, edict_t *killer)
+DeathmatchScoreboardMessage(edict_t *ent, edict_t *killer /* can be NULL */)
 {
 	char entry[1024];
 	char string[1400];