[Bug cli/22455] New: blank line repeats commands even when scripting

["tromey at sourceware dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=22455

            Bug ID: 22455
           Summary: blank line repeats commands even when scripting
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: cli
          Assignee: unassigned at sourceware dot org
          Reporter: tromey at sourceware dot org
  Target Milestone: ---

Try this:

gdb -nx << END
print 23

END

I get this in the output:

(gdb) $1 = 23
(gdb) $2 = 23


The reason is that gdb is repeating the command, due to the blank line.
I think instead gdb should only repeat when the commands are coming
from the tty.

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