shell/shebang incompatibility issues of the 'raven' command

[benkb]

hi

right how the first line of the raven cmd is set to:

":"; export CHEZSCHEMELIBDIRS=.:lib:/usr/local/lib && export CHEZSCHEMELIBEXTS=.chezscheme.sl s::.chezscheme.so:.ss::.so:.sls::.so:.scm::.so:.sch::.so:.sc::.so && exec scheme --script $0 "$@";

which can cause issues with shells other then bash, like eg. the fish shell.

[guenchi]

thx for report :)

[guenchi]

I think this bug is fixed.

Could you test it?