Ryan Libby d8404b7ec3 ddb: just move cursor when the lexer backs up
Get rid of db_look_char because it's not compatible with db_get_line().
This fixes the following issue:

db> script lockinfo=show alllocks
db> run lockinfo
db:0:lockinfo> how alllocks
No such command; use "help" to list available commands

Reported by:	markj
Reviewed by:	markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D28725
2021-02-24 15:56:16 -08:00
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