mercurial.el: change default log range to tip:0 If the tip revision is smaller than hg-rev-completion-limit (defaults to 100), "hg log -r tip:-100" fails. Since performance does not differ between "hg log -l 50 -r tip:0" and "hg log -l 50 -r tip:-100" even on large repository, default range can be changed from "tip:-100" to "tip:0" without any drawbacks.

changeset = '{rev}{tags}{parents}   {node|short}   {date|isodate}   {author|user}\n  {desc|firstline|strip}\n\n'
changeset_quiet = '{rev}:{node|short}\n'
start_tags = '['
tag = '{tag},'
last_tag = '{tag}]'
start_parents = ':'
parent = '{rev},'
last_parent = '{rev}'