[F] Fixed cpp regress test

ChangeLog.md

@@ -1,5 +1,9 @@
 ## v0.1.6
 
+### Internal
+
+- Removed blank lines from `PLAIN_STYLE` and `SIMPLE_STYLE`.
+
 ### Bug fixes
 
 - Changed specific style reset tags to universal reset style tag.

tests/bb_tests_cpp/test_table_basic.cpp

@@ -19,11 +19,10 @@ void test_cpp_bug_fixes(void)
 
         std::string table_str = table.to_string();
         std::string table_str_etalon =
-            " ------- \n"
-            "  1   2  \n"
-            " ------- \n"
-            "  3   4  \n"
-            "         \n";
+            "-------\n"
+            " 1   2 \n"
+            "-------\n"
+            " 3   4 \n";
         assert_string_equal(table_str, table_str_etalon);
     }
 }