Fix arcanist documentation to include "set -e" in example SVN hooks
Summary: "set -e" causes the script to exit if any command returns nonzero.
Without it, we incorrectly discard the failure code. At Facebook everything runs
in "set -e" or some equivalent so I never picked this up in testing.
Test Plan:
Added the hook to my svn local, it blocked bad commits and allowed good ones.
>>> orbital:~/devtools/svnroot $ svn commit -m "quaa"
Sending test.php
Transmitting file data .svn: Commit failed (details follow):
svn: Commit blocked by pre-commit hook (exit code 1) with output:
LINT ERRORS
This changeset has lint errors. You must fix all lint errors before you can
commit.
You can add '@bypass-lint' to your commit message to disable lint checks for
this commit, or '@nolint' to the file with errors to disable lint for that
file.
>>> Lint for test.php:
Error (XHP1) PHP Syntax Error!
This file contains a syntax error: XHPAST Parse Error: syntax error,
unexpected '}' on line 1
>>> 1 <?php asdddddd;!}}Reviewers: svemir, jungejason, tuomaspelkonen, aran
Reviewed By: svemir
CC: aran, svemir, epriestley
Differential Revision: 864