DOC: Fix L4TOUT typo in documentation
Fix documentation typo. L4TMOUT->L4TOUT.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 2242c71..a37f54c 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -14081,7 +14081,7 @@
INI -> initializing
SOCKERR -> socket error
L4OK -> check passed on layer 4, no upper layers testing enabled
- L4TMOUT -> layer 1-4 timeout
+ L4TOUT -> layer 1-4 timeout
L4CON -> layer 1-4 connection problem, for example
"Connection refused" (tcp rst) or "No route to host" (icmp)
L6OK -> check passed on layer 6