fix missing DEFINEDALTEXEPATH

steamtinkerlaunch

@@ -7,7 +7,7 @@
 PREFIX="/usr"
 PROGNAME="SteamTinkerLaunch"
 NICEPROGNAME="Steam Tinker Launch"
-PROGVERS="v14.0.20240421-1 (fix-reshade-dlls-custcmd)"
+PROGVERS="v14.0.20240421-2 (fix-reshade-dlls-custcmd)"
 PROGCMD="${0##*/}"
 PROGINTERNALPROTNAME="Proton-stl"
 SHOSTL="stl"
@@ -9135,6 +9135,7 @@ function setFullGameExePath {
 		# Use Alternative EXE Path if defined instead of custom command path
 		# We should only use the custom command directory if no alternatiive EXE path is defined, and
 		# we should prioritise the alt path if it is defined
+		DEFINEDALTEXEPATH="$(GETALTEXEPATH)"
 		FGEP="${DEFINEDALTEXEPATH:-${CUSTOMCMD%/*}}"
 		writelog "INFO" "${FUNCNAME[0]} - Using the directory '$FGEP' of the used custom command as absolute game exe path"