[PATCH -perfbook 2/2] Use \raggedbottom for ebook-size builds

\flushbottom, which is the default of book class, is suited for
typesetting double-sided printed documents.

For ebook-size builds, which is one-sided, \flushbottom doesn't
make much sense.  \raggedbottom should be a better option as it
prevents excessively tall vertical stretches between paragraphs and
elsewhere.

Signed-off-by: Akira Yokosawa <[email protected]>
---
 perfbook-lt.tex | 1 +
 1 file changed, 1 insertion(+)

diff --git a/perfbook-lt.tex b/perfbook-lt.tex
index fdfde1953225..9c89dd4254b8 100644
--- a/perfbook-lt.tex
+++ b/perfbook-lt.tex
@@ -603,6 +603,7 @@
 \renewcommand{\epigraph}[2]{\epigraphorig{\biolinum\emph{#1}}{\biolinum\scshape\footnotesize #2}}
 \IfEbookSize{
   \newcommand{\Epigraph}[2]{\epigraph{#1}{#2}}
+  \raggedbottom
 }{
   \newcommand{\Epigraph}[2]{\epigraphhead[65]{\epigraph{#1}{#2}}}
 }
-- 
2.25.1