- Fixed various instances of unused variables, accessing arrays out of bounds, initialization of non-primitive members in constructor's body, dead code, passing parameters by value instead of reference, usage of uninitialized variables, as reported by cppcheck.

src/c_cmds.cpp

@@ -1028,8 +1028,7 @@ CCMD(nextsecret)
 				TEXTCOLOR_NORMAL " is for single-player only.\n");
 		return;
 	}
-	char *next = NULL;
-	
+
 	if (level.NextSecretMap.Len() > 0 && level.NextSecretMap.Compare("enDSeQ", 6))
 	{
 		G_DeferedInitNew(level.NextSecretMap);