[RFA] Fix/improve on-line help of 'define' command.

[Philippe Waroquiers <philippe.waroquiers@skynet.be>]

While I was playing with 'define' to understand how some quoting was
done (or not done), I found an inconsistency between the doc
and the online help.
=> the doc is correct, so fixing/improving the on-line help.

2018-06-04  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* cli/cli-script.c (_initialize_cli_script): Fix online documentation
        of 'define' command.
---
 gdb/cli/cli-script.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gdb/cli/cli-script.c b/gdb/cli/cli-script.c
index 72de8ec1c7..8ceecdf435 100644
--- a/gdb/cli/cli-script.c
+++ b/gdb/cli/cli-script.c
@@ -1602,7 +1602,8 @@ Define a new command name.  Command name is argument.\n\
 Definition appears on following lines, one command per line.\n\
 End with a line of just \"end\".\n\
 Use the \"document\" command to give documentation for the new command.\n\
-Commands defined in this way may have up to ten arguments."));
+Commands defined in this way may accept an unlimited number of arguments\n\
+accessed via $arg0 .. $argN. $argc tells how many arguments have been passed."));
 
   add_com ("while", class_support, while_command, _("\
 Execute nested commands WHILE the conditional expression is non zero.\n\
-- 
2.11.0