sql: no parameter, fail

[Hans Schou]

version: 20100906

if 'sql' is started with no arguments, it fails:
$ sql
Use of uninitialized value $alias in pattern match (m//) at
/usr/bin/sql line 669.
Use of uninitialized value $url in pattern match (m//) at /usr/bin/sql line 723.
Use of uninitialized value $url in concatenation (.) or string at
/usr/bin/sql line 752.
Error:
 is not a valid DB-URL

sql [-hnr] [--table-size] [--db-size] [-p pass-through] [-s string]
dburl [command]


/hans