This avoids a bogus message

	Could not rmdir 'vcl_...': Directory not empty

Ref 904659a1
    1594037c

For dynamic allocations use:

	VSB_new_auto() + VSB_destroy()

For preexisting buffers use:

	VSB_init() + VSB_fini()

VSB_new + VSB_delete are deprecated.

        clear for static analysis tools what goes on."

This reverts commit 36225f2e.

Try to read into the buffer in one go.

closes #3366

	':' base64(blob) ':'

When decoding only a substring, we naturally see no padding, so we must
not base tail processing on the number of pad characters seen, but
rather on the number of characters missing until the end of the current
block of four.

Fixes #3378

clear for static analysis tools what goes on.

This commit will be reverted if that doesn't work.

with the public api functions called VBH_

by Dridi, thank you

Automake generates a different libtool invocation if ?= is used.
More investigation needed but for now this is enough to fix make
check under macos.

I believe we get those when we have "subdir-objects", which we do now.

Coverity fails to see that with at least 2 OC refs on entry to EXP_Insert,
and one deref if race, then at least one ref remains. Attempt to coerce
acception.

The log readers would not complete the acquire/release pair of memory
fence operations when waiting for new data to appear in the shared memory
log. With this, a VRMB() is issued after having waited for the
VSL_ENDMARKER disappears, and before using any data after it (including
the deciphered length data).