Turn SAL_INFO back to SAL_WARN

...the reason it started firing was a regression that has now been addressed
with 402eaced "Related fdo#46808: Fix
UUIInteractionHandler::initialize argument handling."

Change-Id: I2f36e1cb5ae1af293a7c07c366f1602e56e966ea

comphelper/source/misc/namedvaluecollection.cxx

@@ -217,7 +217,7 @@ namespace comphelper
             else
             {
                 // Once this is rare, this could be turned into a warning.
-                SAL_INFO_IF(
+                SAL_WARN_IF(
                     pArgument->hasValue(), "comphelper",
                     ("NamedValueCollection::impl_assign: encountered a value"
                      " type which I cannot handle: "