Change: Apply some consistency to singleplayer related comments

src/openttd.cpp

@@ -1131,7 +1131,7 @@ void SwitchToMode(SwitchMode new_mode)
 			break;
 
 		case SM_SAVE_GAME: // Save game.
-			/* Make network saved games on pause compatible to singleplayer */
+			/* Make network saved games on pause compatible to singleplayer mode */
 			if (SaveOrLoad(_file_to_saveload.name, SLO_SAVE, DFT_GAME_FILE, NO_DIRECTORY) != SL_OK) {
 				SetDParamStr(0, GetSaveLoadErrorString());
 				ShowErrorMessage(STR_JUST_RAW_STRING, INVALID_STRING_ID, WL_ERROR);