log: make opts entries optional (issue2423)

test-clone: fix for vfat fixes http://hgbuildbot.kublai.com/builders/vfat%20hg%20tests%20%28stable%29/builds/65

obsolete: fix typos in comments introduced by 6955d69a52a4

pager: drop -S option for less in example for pager configuration Using less -S will hide possibly important information when reviewing a changeset, e.g. something wrong/dangerous after the 80th column, because "less" will not give an indication that following characters are hidden.

obsolete: properly increment currentlen when building pushkey payload In the old code, the current length was always 0 leading to markers payload never being split.

hgweb: fixes invalid parents / children in comparison Previously, the parents / children were computed relative to the cset of the currently shown file, which was wrong and inconsistent with diff and others. With this patch, the listed csets are those that contain changes to the currently compared file, which don't necessarily have to be the direct parents and children of the changeset itself.

hgweb: fixes traceback for invalid files by removing top-level template The top-level 'comparison' template was not really needed, and it also caused a traceback to be shown for inexistent files (as reported by Ross Lagerwall). Getting rid of it makes the overall templating structure simpler and causes invalid files to be handled nicely.

merge with i18n

i18n-ja: synchronized with b087cfebc3ac

check-code: indent 4 spaces in py files