add check for required arg TEMPLATE

* format.sh
  (version): Bump to "1.2".
  <top-level>: Handle missing arg TEMPLATE.

1 files changed, 7 insertions, 1 deletions

diff --git a/format.sh b/format.sh
index f48dda6..a268ef5 100755
--- a/format.sh
+++ b/format.sh
@@ -6,7 +6,8 @@
 ##
 me=$(basename $0)
 
-version='1.1'
+version='1.2'
+# 1.2  -- add check for required arg TEMPLATE
 # 1.1  -- add --help/--version support
 # 1.0  -- initial release
 
@@ -20,6 +21,11 @@ if [ x"$1" = x--version ] ; then
     exit 0
 fi
 
+if [ x"$1" = x ] ; then
+    echo >&2 "$me: ERROR: missing arg TEMPLATE (try --help)"
+    exit 1
+fi
+
 template="$1"
 
 exec recfmt -f "$template"