bug#4147: 23.1.50: Info-search command strange behaviour

[Eli Zaretskii]

> From: Juri Linkov <juri@jurta.org>
> Date: Mon, 14 Dec 2009 23:54:16 +0200
> Cc: 
> 
> This suggests to put navigation links and breadcrumbs in the header line
> on two lines.  But when I tried to do this, the header line displays
> ^J for the newline instead of displaying two lines.
> 
> Is this a limitation of the Emacs display engine?

The display code assumes there's only one ``glyph row'' in the header
line, yes.  And likewise in the mode line.