build-latex.sh: Be verbose while running.

Debugging the thing is kind of annoying.

diff --git a/build-latex.sh b/build-latex.sh
index 869cb28..b772418 100755 (executable)
--- a/build-latex.sh
+++ b/build-latex.sh
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-set -e
+set -ex
 jobname=$1 opts=$2 file=$3 preamble=$4
 
 case ",$opts," in