Pointed out by Jean-François Laurens.

Conflicts:
	bin/varnishd/cache/cache_fetch.c

whitespace) testfiles.

Spotted by:	Coverity

In particular, this avoids a later backend.list attempt on a file descriptor
to a dead process and, consequently, avoids a long delay in varnishtest
when varnishd cant be started (for instance, because it is not in PATH).

Ref: #1924

Related to #1924.

Fixes #1924.

This reverts commit 47a1ef06.

Not needed after 7dec1221.

As discussed with phk: Callers of Lck_CondWait with timeout should
be prepared for early wakeups.

Reduces my stash list to 62 entries.

Conflicts:
	doc/sphinx/dev-guide/index.rst

This was already called and has not been any changes since then.

a family of tickets related to it (#1933 #1920 #1898 (?) #1888 and #1865 (?))

We may not have permission to unlink vp.dir

$ /etc/init.d/varnish_master restart
Stopping Varnish Cache:                                    [FAILED]
Starting Varnish Cache: Assert error in mgt_VccCompile(), mgt/mgt_vcc.c line 302:
  Condition((rmdir(vp.dir)) == 0) not true.
  errno = 13 (Permission denied)

eat all CPU time.

I shouldn't rely on auto-complete too much, especially for only two
characters...

Spotted by @fgsch