gdb, doc: add the missing '-gid' option to 'info threads'

The 'info threads' command does not show the '-gid' option
in the syntax.  Add the option.  The flag is already explained
in the command description and used in the examples.

Approved-By: Eli Zaretskii <eliz@gnu.org>

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index fe76e5e0a0ee10c2065e3e4c21ff59d9a572ceed..ed14888b77b834cf6b96aa1cb859b3df9383c4c3 100644 (file)
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -3678,7 +3678,7 @@ Thread 1 "main" received signal SIGINT, Interrupt.
 @table @code
 @anchor{info_threads}
 @kindex info threads
-@item info threads @r{[}@var{thread-id-list}@r{]}
+@item info threads @r{[}-gid@r{]} @r{[}@var{thread-id-list}@r{]}
 
 Display information about one or more threads.  With no arguments
 displays information about all threads.  You can specify the list of