feat(etl): update ET: Legacy to 2.76 (#3363)

lgsm/functions/install_server_files.sh

@@ -27,7 +27,7 @@ fn_install_server_files(){
 	elif [ "${shortname}" == "codwaw" ]; then
 		remote_fileurl="http://linuxgsm.download/CallOfDutyWorldAtWar/codwaw-lnxded-1.7-full.tar.xz"; local_filedir="${tmpdir}"; local_filename="codwaw-lnxded-1.7-full.tar.xz"; chmodx="nochmodx" run="norun"; force="noforce"; md5="2c6be1bb66ea631b9b2e7ae6216c6680"
 	elif [ "${shortname}" == "etl" ]; then
-		remote_fileurl="http://linuxgsm.download/WolfensteinEnemyTerritory/etlegacy-v2.76-i386-et-260b.tar.xz"; local_filedir="${tmpdir}"; local_filename="etlegacy-v2.75-i386-et-260b.tar.bz2"; chmodx="nochmodx" run="norun"; force="noforce"; md5="178a00233cec1e25b69d130107ce1a79"
+		remote_fileurl="http://linuxgsm.download/WolfensteinEnemyTerritory/etlegacy-v2.77-i386-et-260b.tar.xz"; local_filedir="${tmpdir}"; local_filename="etlegacy-v2.77-i386-et-260b.tar.xz"; chmodx="nochmodx" run="norun"; force="noforce"; md5="7f301708f5bb1272c243f9e2d1b735dc"
 	elif [ "${shortname}" == "mohaa" ]; then
 		remote_fileurl="http://linuxgsm.download/MedalofHonorAlliedAssault/moh_revival_v1.12_RC3.5.1.tar.xz"; local_filedir="${tmpdir}"; local_filename="moh_revival_v1.12_RC3.5.1.tar.xz"; chmodx="nochmodx" run="norun"; force="noforce"; md5="7c664538999252eeaf2b6d9949416480"
 	elif [ "${shortname}" == "ns" ]; then