Make sh(1) recognize the default $HOME. By default /home

is a symlink; without this change, when you log in, sh(1)
won't realize the current directory (eg '/usr/home/test')
is the same as $HOME ('/home/test').

Reviewed by:	jilles
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D18775

share/skel/dot.profile

@@ -21,6 +21,9 @@ PAGER=less;  	export PAGER
 # set ENV to a file invoked each time sh is started for interactive use.
 ENV=$HOME/.shrc; export ENV
 
+# Let sh(1) know it's at home, despite /home being a symlink.
+if [ "$PWD" != "$HOME" ] && [ "$PWD" -ef "$HOME" ] ; then cd ; fi
+
 # Query terminal size; useful for serial lines.
 if [ -x /usr/bin/resizewin ] ; then /usr/bin/resizewin -z ; fi