[2835] style fix: name variables with lower+_ per convention

src/lib/datasrc/tests/client_list_unittest.cc

@@ -1169,11 +1169,10 @@ TEST(DataSourceStatus, status) {
     EXPECT_EQ("Test", status.getName());
     EXPECT_EQ(SEGMENT_INUSE, status.getSegmentState());
     EXPECT_EQ("local", status.getSegmentType());
-    const DataSourceStatus statusUnused("Unused", SEGMENT_UNUSED,
-                                        "");
-    EXPECT_EQ("Unused", statusUnused.getName());
-    EXPECT_EQ(SEGMENT_UNUSED, statusUnused.getSegmentState());
-    EXPECT_THROW(statusUnused.getSegmentType(), isc::InvalidOperation);
+    const DataSourceStatus status_unused("Unused", SEGMENT_UNUSED, "");
+    EXPECT_EQ("Unused", status_unused.getName());
+    EXPECT_EQ(SEGMENT_UNUSED, status_unused.getSegmentState());
+    EXPECT_THROW(status_unused.getSegmentType(), isc::InvalidOperation);
 }
 
 }