Fix #10982: No help text for gamelog command (#10984)

src/console_cmds.cpp

@@ -2105,6 +2105,11 @@ DEF_CONSOLE_CMD(ConListSettings)
 
 DEF_CONSOLE_CMD(ConGamelogPrint)
 {
+	if (argc == 0) {
+		IConsolePrint(CC_HELP, "Print logged fundamental changes to the game since the start. Usage: 'gamelog'.");
+		return true;
+	}
+
 	_gamelog.PrintConsole();
 	return true;
 }

src/gamelog.cpp

@@ -5,7 +5,7 @@
  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** @file gamelog.cpp Definition of functions used for logging of important changes in the game */
+/** @file gamelog.cpp Definition of functions used for logging of fundamental changes to the game */
 
 #include "stdafx.h"
 #include "saveload/saveload.h"

src/gamelog.h

@@ -5,7 +5,7 @@
  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** @file gamelog.h Functions to be called to log possibly unsafe game events */
+/** @file gamelog.h Functions to be called to log fundamental changes to the game */
 
 #ifndef GAMELOG_H
 #define GAMELOG_H