minirst: refactor/simplify findblocks

inotify: raise correct error if server is already started in a deep repository When path is too long to be an Unix socket address, we create a socket in a temporary directory and link from the long path to the shorter one. But checks in server code at startup were insufficient in this case, and used to raise an unclear "tried linking .hg/inotify.sock to a temporary socket but .hg/inotify.sock already exists"

setup: user-friendly error message if Python headers are missing

test-keyword: ignore subject in notify hook mails Long tmpdir names caused truncation of subject anyway, and that made $TESTTMP replacement fail.

test-keyword: fix test glob to ACL/SELinux flag

test-notify: fix fix for line continuation in long mail header lines Continued lines can also start with space. Note that this hack also incorrectly patches the diff output.