[PATCH] Update comment in linux_nat_can_async_p

[Simon Marchi <simon.marchi@ericsson.com>]

I think this comment is outdated.  Nowadays, linux-nat is always async,
unless the user has explictly turned it off with
"maint set target-async off".

gdb/ChangeLog:

	* linux-nat.c (linux_nat_can_async_p): Update comment.
---
 gdb/linux-nat.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index dd5c6d2c4d..c58ed83efd 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -4417,9 +4417,8 @@ linux_nat_is_async_p (struct target_ops *ops)
 static int
 linux_nat_can_async_p (struct target_ops *ops)
 {
-  /* NOTE: palves 2008-03-21: We're only async when the user requests
-     it explicitly with the "set target-async" command.
-     Someday, linux will always be async.  */
+  /* We're always async, unless the user explicitly prevented it with the
+     "maint set target-async" command.  */
   return target_async_permitted;
 }
 
-- 
2.11.0