No need to cat crash.log on crash.

One cannot start kpdf.sh from a terminal anyway (try it and you will see
that keyboard handling doesn't work), so there is no need to cat the
content of crash.log (to a non-existent terminal) if reader.lua fails.

kpdf.sh

@@ -22,7 +22,7 @@ fi
 killall -stop cvm
 
 # finally call reader
-./reader.lua "$1" 2> /mnt/us/kindlepdfviewer/crash.log || cat /mnt/us/kindlepdfviewer/crash.log
+./reader.lua "$1" 2> crash.log
 
 # unmount system fonts
 if grep /mnt/us/kindlepdfviewer/fonts/host /proc/mounts; then