RedMine 6397 mitigation: use alternate column instead of empty.

In SplitProcLine(), we parse the line two ways; if the two don't
agree, we winge about it; but we use the first one anyway.  We see
some cases where Solaris ps gets a better answer from the second than
from the first; so use the second by default and fall back to the
first if it's empty.

(cherry picked from commit a5cf6071045e49df8008a08651582064c45c7b68)
Redmine #6421: Fix incorrect newline mode when reading in execresult.

The output is expected to be text, so it should be read in text mode,
converting "\r\n" to "\n" in the resulting variable.

(cherry picked from commit 7f32ae03bf6d04199aae1ae94ed4ce671c76d520)
Remove revision from version tag for 3.6.1 packages.
Changelog entry for LMDB robustness patch.

(cherry picked from commit 90a30222d0a1c7acd34bb22fdc844b03d2529c2e)
disable failing unit test redmine 6314
(cherry picked from commit b25c41f69ae76845c8702353784ef22f091a0c86)