Use MiBSD ksh if installed (#1470)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6687 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/files/etc/profile

@@ -7,6 +7,8 @@ export PS1='\u@\h:\w\$ '
 alias more=less
 [ -x /usr/bin/vim ] || alias vim=vi
 
+[ -z "$KSH_VERSION" -o \! -s /etc/mkshrc ] || . /etc/mkshrc
+
 arp() { cat /proc/net/arp; }
 ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
 reboot() { ifdown wan 2>&1 >/dev/null ; /sbin/reboot; }