[PATCH 2/2] gdb: add doc for "set/show debug event-loop"

[Simon Marchi via Gdb-patches <gdb-patches@sourceware.org>]

I forgot that "set/show debug" commands are listed in the doc and in
NEWS, so here they are.

gdb/doc/ChangeLog:

	* gdb.texinfo (Debugging Output): Add set/show debug event-loop.

gdb/ChangeLog:

	* NEWS: Mention set/show debug event-loop.

Change-Id: If30b80177049006578280a06912ee2b97bd03a75
---
 gdb/NEWS            | 6 ++++++
 gdb/doc/gdb.texinfo | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/gdb/NEWS b/gdb/NEWS
index f30d7183312f..d230b1c3228b 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -15,6 +15,12 @@
 
 * GDB now supports core file debugging for x86_64 Cygwin programs.
 
+* New commands
+
+set debug event-loop
+show debug event-loop
+  Control the display of debug output about GDB's event loop.
+
 *** Changes in GDB 10
 
 * There are new feature names for ARC targets: "org.gnu.gdb.arc.core"
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 027f4de07677..dc74803a3f3e 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -26481,6 +26481,15 @@ default is off.
 Displays the current state of displaying @value{GDBN} event debugging
 info.
 
+@item set debug event-loop
+@cindex event-loop debugging
+Controls output of debugging info about the event loop.  The possible
+values are off, all (shows all debugging info) and all-except-ui (shows
+all debugging info except those about UI-related events).
+@item show debug event-loop
+Displays the current state of displaying debugging info about the event
+loop.
+
 @item set debug expression
 @cindex expression debugging info
 Turns on or off display of debugging info about @value{GDBN}
-- 
2.28.0