graphmod: set default edge styles for ascii graphs (BC) Leaving regular parent edges set to |, grandparent edges set to : and missing parent edges set to end early. A sample graph: o changeset: 32:d06dffa21a31 |\ parent: 27:886ed638191b | : parent: 31:621d83e11f67 | : o : changeset: 31:621d83e11f67 |\: parent: 21:d42a756af44d | : parent: 30:6e11cd4b648f | : o : changeset: 30:6e11cd4b648f |\ \ parent: 28:44ecd0b9ae99 | ~ : parent: 29:cd9bb2be7593 | / o : changeset: 28:44ecd0b9ae99 |\ \ parent: 1:6db2ef61d156 | ~ : parent: 26:7f25b6c2f0b9 | / o : changeset: 26:7f25b6c2f0b9 |\ \ parent: 18:1aa84d96232a | | : parent: 25:91da8ed57247 | | : | o : changeset: 25:91da8ed57247 | |\: parent: 21:d42a756af44d | | : parent: 24:a9c19a3d96b7 | | : | o : changeset: 24:a9c19a3d96b7 | |\ \ parent: 0:e6eb3150255d | | ~ : parent: 23:a01cddf0766d | | / | o : changeset: 23:a01cddf0766d | |\ \ parent: 1:6db2ef61d156 | | ~ : parent: 22:e0d9cccacb5d | | / | o : changeset: 22:e0d9cccacb5d |/:/ parent: 18:1aa84d96232a | : parent: 21:d42a756af44d | : | o changeset: 21:d42a756af44d | |\ parent: 19:31ddc2c1573b | | | parent: 20:d30ed6450e32 | | | +---o changeset: 20:d30ed6450e32 | | | parent: 0:e6eb3150255d | | ~ parent: 18:1aa84d96232a | | | o changeset: 19:31ddc2c1573b | |\ parent: 15:1dda3f72782d | ~ ~ parent: 17:44765d7c06e0 | o changeset: 18:1aa84d96232a parent: 1:6db2ef61d156 parent: 15:1dda3f72782d