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In code dealing with commands, there's a pattern repeated a few times of calling lookup_cmd with some speficic arguments and then using strcmp on the returned command to check for an exact match. As a later patch would add a few more similar lines of code, this patch adds a new lookup_cmd_exact function which simplify this use case. gdb/ChangeLog: * cli/cli-decode.c (lookup_cmd_exact): Add. * cli/cli-script.c (do_define_command): Use lookup_cmd_exact. (define_prefix_command): Ditto. * command.h: Add lookup_cmd_exact.