152 % log -P 2

   153 changeset:   6:2404bbcab562

   154 tag:         tip

   155 user:        test

   156 date:        Thu Jan 01 00:00:01 1970 +0000

   157 summary:     b1.1

   158 

   159 changeset:   5:302e9dd6890d

   160 parent:      3:e62f78d544b4

   161 parent:      4:ddb82e70d1a1

   162 user:        test

   163 date:        Thu Jan 01 00:00:01 1970 +0000

   164 summary:     m12

   165 

   166 changeset:   4:ddb82e70d1a1

   167 parent:      0:67e992f2c4f3

   168 user:        test

   169 date:        Thu Jan 01 00:00:01 1970 +0000

   170 summary:     b2

   171 

   172 changeset:   3:e62f78d544b4

   173 parent:      1:3d5bf5654eda

   174 user:        test

   175 date:        Thu Jan 01 00:00:01 1970 +0000

   176 summary:     b1

   177