Adjust quoting for Index build, again.

Add missing quote.  Adjust RunTestGDBIndexBuild_c32t32.

Try passing env via __init__

Pass RUNTESTFLAGS via env (not via command-line) on IndexBuild.

Fix quotes

Fix cc-with-index make check flags

Temporarily disable Aarch64 email notifications

Temporarily disable email notifications for Fedora-s390x-m64

Enable timestamp'ed output

Remove breakage lockfile if build succeeds and if we're not running a try build

Try/Except on os.remove

Enable email notif to Ubuntu-Aarch64-* and add them to try_builders

Add Ubuntu-Aarch64-* builders (Thanks to Alan Hayward)

Enable mail notification for Solaris

Fix whitespace issue

Thinko

Fix last commit, 4

Fix last commit, 3

Fix last commit, 2

Fix last commit