spelling: operator

src/lib/dns/tests/unittest_util.h

@@ -42,7 +42,7 @@ public:
     ///
     /// This check method uses \c Name::compare() for comparison, which performs
     /// deeper checks including the equality of offsets, and should be better
-    /// than EXPECT_EQ, which uses operater==.  Like the \c matchWireData()
+    /// than EXPECT_EQ, which uses operator==.  Like the \c matchWireData()
     /// method, the usage is a bit awkward; the caller should use
     /// \c EXPECT_PRED_FORMAT2.
     ///