===================================================================
RCS file: /cvs/mandoc/gmdiff,v
retrieving revision 1.4
retrieving revision 1.6
diff -u -p -r1.4 -r1.6
--- mandoc/gmdiff	2015/04/05 09:30:24	1.4
+++ mandoc/gmdiff	2017/05/18 14:45:34	1.6
@@ -19,7 +19,7 @@ if [ `id -u` -eq 0 ]; then
 fi
 
 if [ $# -eq 0 ]; then
-  echo "usage: $0 -h manual_source_file ..."
+  echo "usage: $0 [-h] manual_source_file ..."
   exit 1
 fi
 
@@ -33,7 +33,7 @@ else
   EQN="eqn -Tascii"
   ROFF="groff -ww -Tascii -P -c"
 fi
-MOPT="-Werror $MOPT"
+MOPT="-Werror -Tascii $MOPT"
 
 while [ -n "$1" ]; do
   file=$1
@@ -43,7 +43,7 @@ while [ -n "$1" ]; do
   ${MANDOC:=mandoc} -Ios='OpenBSD ports' $MOPT $file \
     2> /tmp/mandoc.err > /tmp/mandoc.out
   for i in roff mandoc; do
-    [[ -s /tmp/$i.err ]] && echo "$i errors:" && cat /tmp/$i.err
+    [ -s /tmp/$i.err ] && echo "$i errors:" && cat /tmp/$i.err
   done
   diff -au /tmp/roff.out /tmp/mandoc.out 2>&1
 done