hgweb: fix incorrect graph padding calculation (issue3626)...
hgweb: fix incorrect graph padding calculation (issue3626)
hgweb has an incorrect padding calculation, causing the text to move further
away from the graph the more branches there are (issue3626). This patch fixes
all existing templates (gitweb, monoblue, paper and spartan).
Tests updated by Patrick Mezard <patrick@mezard.eu>