[PATCH -perfbook 5/5] Use underline for url links in 2c builds' bibliography

Light-blue borders around URL links mask periods at title ends in
bibliography.  Use thin black underlines instead to avoid such visual
interference.

Signed-off-by: Akira Yokosawa <[email protected]>
---
 perfbook-lt.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/perfbook-lt.tex b/perfbook-lt.tex
index 0fa51425..580d1f01 100644
--- a/perfbook-lt.tex
+++ b/perfbook-lt.tex
@@ -704,7 +704,7 @@
   \bibliographystyle{alphapf} % Use alpha style customized by urlbst with --inlinelinks option
 }
 \IfColorLinks{}{
-  \hypersetup{pdfborder=0 0 1,urlbordercolor=0.4 1 1}
+  \hypersetup{pdfborder=0 0 1,urlbordercolor=0 0 0,pdfborderstyle=/S/U/W .2}
 }
 \bibliography{bib/RCU,bib/WFS,bib/hw,bib/os,bib/parallelsys,bib/patterns,bib/perfmeas,bib/refs,bib/syncrefs,bib/search,bib/swtools,bib/realtime,bib/TM,bib/standards,bib/OSS,bib/maze,bib/energy,bib/QC,bib/NP,bib/memorymodel}
 \IfColorLinks{}{
-- 
2.34.1