Document the difference between rec_control quit and quit-nicely.

Fixes #2267

diff --git a/pdns/recursordist/docs/manpages/rec_control.1.rst b/pdns/recursordist/docs/manpages/rec_control.1.rst
index f196dab158b41bf734a896487e6ba08332ca0395..7bf07ff8ac7e7980d416d161ef9faa127a8cbe2f 100644 (file)
--- a/pdns/recursordist/docs/manpages/rec_control.1.rst
+++ b/pdns/recursordist/docs/manpages/rec_control.1.rst
@@ -196,10 +196,13 @@ ping
     Check if server is alive.
 
 quit
-    Request shutdown of the recursor.
+    Request shutdown of the recursor, exiting the process while
+    letting the OS clean up recources.
 
 quit-nicely
-    Request nice shutdown of the recursor.
+    Request nice shutdown of the recursor. This method allows all
+    threads to finish their current work and releases resources before
+    exiting. This is the preferred method to stop the recursor.
 
 reload-acls
     Reloads ACLs.