correctly interpret $$lte as "less than OR EQUAL TO"

Author: jamis

spec/runners/unified/assertions.rb

@@ -385,8 +385,8 @@ def assert_value_matches(actual, expected, msg)
             raise Error::ResultMismatch, "Actual value #{actual} does not match entity #{expected_v} with value #{result}"
           end
         when '$$lte'
-          if actual.nil? || actual >= expected_v
-            raise Error::ResultMismatch, "Actual value #{actual} should be less than #{expected_v}"
+          if actual.nil? || actual > expected_v
+            raise Error::ResultMismatch, "Actual value #{actual} should be less than or equal to #{expected_v}"
           end
         when '$$matchAsDocument'
           actual_v = BSON::ExtJSON.parse(actual)