bundle_octave_app broken on macOS 12 due to missing realpath command

[apjanke]

Recently, when I try running bundle_octave_app on macOS 12.7.4 Monterey on Intel:

janke@montague octave-app-bundler % ./bundle_octave_app --show-options
./bundle_octave_app: line 97: realpath: command not found
janke@montague octave-app-bundler % realpath
zsh: command not found: realpath
janke@montague octave-app-bundler % which -a realpath
realpath not found
janke@montague octave-app-bundler %

I guess realpath was new in macOS 13?

On macOS 12:

janke@montague octave-app-bundler % ls /bin
[		csh		echo		ksh		mkdir		rm		sync		zsh
bash		dash		ed		launchctl	mv		rmdir		tcsh
cat		date		expr		link		pax		sh		test
chmod		dd		hostname	ln		ps		sleep		unlink
cp		df		kill		ls		pwd		stty		wait4path
janke@montague octave-app-bundler %

On macOS 13:

janke@thirsty octave-app-bundler % sw_vers | grep ProductVersion
ProductVersion:		13.6.6
janke@thirsty octave-app-bundler % which realpath
/bin/realpath
janke@thirsty octave-app-bundler % ls /bin
[		date		kill		mv		sh		wait4path
bash		dd		ksh		pax		sleep		zsh
cat		df		launchctl	ps		stty
chmod		echo		link		pwd		sync
cp		ed		ln		realpath	tcsh
csh		expr		ls		rm		test
dash		hostname	mkdir		rmdir		unlink
janke@thirsty octave-app-bundler %