hg backout [OPTION]... [-r] REV reverse effect of earlier changeset Prepare a new changeset with the effect of REV undone in the current working directory. If REV is the parent of the working directory, then this new changeset is committed automatically. Otherwise, hg needs to merge the changes and the merged result is left uncommitted. By default, the pending changeset will have one parent, maintaining a linear history. With --merge, the pending changeset will instead have two parents: the old parent of the working directory and a new child of REV that simply undoes REV. Before version 1.7, the behavior without --merge was equivalent to specifying --merge followed by "hg update --clean ." to cancel the merge and leave the child of REV as a head to be merged separately. See "hg help dates" for a list of formats valid for -d/--date. Returns 0 on success. options: --merge merge with old dirstate parent after backout --parent REV parent to choose when backing out merge -t --tool VALUE specify merge tool -r --rev REV revision to backout -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns -m --message TEXT use text as commit message -l --logfile FILE read commit message from file -d --date DATE record datecode as commit date -u --user USER record the specified user as committer [+] marked option can be specified multiple times use "hg -v help backout" to show global options