DOCS-9912 Fix error message for 3.2

Author: kallimachos

source/reference/ulimit.txt

@@ -136,10 +136,10 @@ contrast, the "soft" ``ulimit`` is the limit that is actually
 enforced for a session or process, but any process can increase it
 up to "hard" ``ulimit`` maximum.
 
-A low "soft" ``ulimit`` can cause ``can't create new thread,
-closing connection`` errors if the number of connections
-grows too high. For this reason, it is extremely important to set
-*both* ``ulimit`` values to the recommended values.
+A low "soft" ``ulimit`` can cause ``failed to create thread after accepting new
+connection, closing connection`` errors if the number of connections grows too
+high. For this reason, it is extremely important to set *both* ``ulimit``
+values to the recommended values.
 
 ``ulimit`` will modify both "hard" and "soft" values unless the
 :setting:`-H` or :setting:`-S` modifiers are specified when