Bruno Larsen f52625f1f2 gdb/cli: Improve UX when using list with no args ...

When using "list" with no arguments, GDB will first print the lines
around where the inferior is stopped, then print the next N lines until
reaching the end of file, at which point it warns the user "Line X out
of range, file Y only has X-1 lines.".  This is usually desirable, but
if the user can no longer see the original line, they may have forgotten
the current line or that a list command was used at all, making GDB's
error message look cryptic. It was reported in bugzilla as PR cli/30497.

This commit improves the user experience by changing the behavior of
"list" slightly when a user passes no arguments.  It now prints that the
end of the file has been reached and recommends that the user use the
command "list ." instead.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30497
Reviewed-By: Eli Zaretskii <eliz@gnu.org>
Approved-By: Tom Tromey <tom@tromey.com>

2023-07-14 10:58:17 +02:00

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