[1976] Make some minor typo/grammar changes

src/bin/auth/command.cc

@@ -169,13 +169,13 @@ public:
                 return;
             case ConfigurableClientList::ZONE_NOT_FOUND:
                 isc_throw(AuthCommandError, "Zone " << origin_ << "/" <<
-                          zone_class_ << " was not found in any configure "
+                          zone_class_ << " was not found in any configured "
                           "data source. Configure it first.");
             case ConfigurableClientList::ZONE_NOT_CACHED:
                 isc_throw(AuthCommandError, "Zone " << origin_ << "/" <<
                           zone_class_ << " is not served from memory, but "
                           "direcly from the data source. It is not possible "
-                          "to reload into memory, configure it to be cached "
+                          "to reload it into memory. Configure it to be cached "
                           "first.");
             case ConfigurableClientList::CACHE_DISABLED:
                 // This is an internal error. Auth server must have the cache

src/bin/auth/tests/command_unittest.cc

@@ -311,7 +311,7 @@ TEST_F(AuthCommandTest,
     result_ = execAuthServerCommand(server_, "loadzone",
                                     Element::fromJSON(
                                         "{\"origin\": \"example.org\"}"));
-    checkAnswer(0, "Successfull load");
+    checkAnswer(0, "Successful load");
 
     // And now it should be present too.
     EXPECT_EQ(ZoneFinder::SUCCESS, server_.getClientList(RRClass::IN())->