Format log messages with spaces
Validate client certificate dates
Use Theme consistent styles in FoldableLinearLayout

For support of the dark and light themes.

Also:

Redefine mFolded and call it mIsFolded.  Previously,
the view started with mFolded = false (which implies to me
the initial state is unfolded) and yet the view
started in a folded state, which seemed contradictory.

Create updateFoldedState() with code from onClick() (In
preparation for subsequent commit.)
Save/Restore the FoldableLinearLayout state
Make the foldable container view INVISIBLE, not GONE

Now when toggling the foldable view, the screen no longer
jumps half a line up or down to recenter itself when
the view is displayed.
Clean up indentation

White space changes only