Set the default PATH to the one set by login.

--- krb5/src/clients/ksu/Makefile.in
+++ krb5/src/clients/ksu/Makefile.in
@@ -1,6 +1,6 @@
 mydir=clients$(S)ksu
 BUILDTOP=$(REL)..$(S)..
-DEFINES = -DGET_TGT_VIA_PASSWD -DPRINC_LOOK_AHEAD -DCMD_PATH='"/bin /local/bin"'
+DEFINES = -DGET_TGT_VIA_PASSWD -DPRINC_LOOK_AHEAD -DCMD_PATH='"/sbin /usr/sbin /bin /usr/bin"'
 
 KSU_LIBS=@KSU_LIBS@
 PAM_LIBS=@PAM_LIBS@