incorrect parsing of semicolon command separator

[Elaine Meng]

Example:

open 5chz
surf enclose protein; surf enclose nucleic
...gives error, but

surf enclose protein
surf enclose nucleic
...works

Reassign as appropriate, I may have gotten the wrong person.

[Tom Goddard]

Greg handles command-line parsing, reassigning.

Error is that parsing the first command atom spec is encountering the semi-colon.

surface enclose protein; surf enclose nucleic
Invalid "enclose" argument: only initial part "protein" of atom specifier valid

[Greg Couch]

Fixed.