Added the appropriate #! magic at the beginning of shell scripts. (Some modern shells don't like scripts to be without it.)

distr/dwalk

@@ -1,3 +1,5 @@
+#!/bin/sh
+
 : ${CDIR=.}
 ${DF-:} $CDIR .distr
 if test ! -r $DESTDIR/$CDIR/.distr

distr/mk_distr_syms

@@ -1,3 +1,4 @@
+#!/bin/sh
 : Utility to make a tree of symbolic links to source tree.
 : Mount the source tree read-only, use this script, and then try installation.
 case $# in

distr/mka

@@ -1,3 +1,5 @@
+#!/bin/sh
+
 set -e
 for i in `tail +2 $DESTDIR/$1/LIST`
 do

distr/mkf

@@ -1,3 +1,5 @@
+#!/bin/sh
+
 if [ -f $DESTDIR/$1/$2 ]
 then
 	: