feat(etl): update Enemy Territory: Legacy to 2.78 (#3609)

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lgsm/functions/check_deps.sh

@@ -225,7 +225,7 @@ fn_deps_detector(){
 	## Check.
 	# SteamCMD: Will be removed from required array if no appid is present or non-free repo is not available.
 	# This will cause SteamCMD to be installed using tar.
- if [ -z "${appid}" ]||[ "${deptocheck}" == "steamcmd" ]&&[ "${distroid}" == "debian" ]&& ! grep -qE "^deb .*non-free" /etc/apt/sources.list; then
+	if [ -z "${appid}" ]||[ "${deptocheck}" == "steamcmd" ]&&[ "${distroid}" == "debian" ]&& ! grep -qE "^deb .*non-free" /etc/apt/sources.list; then
 		array_deps_required=( "${array_deps_required[@]/steamcmd}" )
 		steamcmdstatus=1
 	# Java: Added for users using Oracle JRE to bypass check.

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 [ "${shortname}" == "etl" ]; then
-		remote_fileurl="http://linuxgsm.download/WolfensteinEnemyTerritory/etlegacy-v2.77.1-i386-et-260b.tar.xz"; local_filedir="${tmpdir}"; local_filename="etlegacy-v2.77.1-i386-et-260b.tar.xz"; chmodx="nochmodx" run="norun"; force="noforce"; md5="cc307a9232abd3999be499b42d8e4ea8"
+		remote_fileurl="http://linuxgsm.download/WolfensteinEnemyTerritory/etlegacy-v2.78-i386-et-260b.tar.xz"; local_filedir="${tmpdir}"; local_filename="etlegacy-v2.78-i386-et-260b.tar.xz"; chmodx="nochmodx" run="norun"; force="noforce"; md5="501e442fdac2eeab5e7f51e5b5c27280"
 	elif [ "${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