proftpd: clean the host path in prxs

prxs (PRoftpd eXtenSion tool) is a perl script,
in which the host path should be avoided.

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

meta-networking/recipes-daemons/proftpd/proftpd_1.3.5a.bb

@@ -99,6 +99,11 @@ do_install () {
         -e 's,@SYSCONFDIR@,${sysconfdir},g' \
         -e 's,@SBINDIR@,${sbindir},g' \
         -i ${D}${systemd_unitdir}/system/*.service
+
+    sed -e 's|--sysroot=${STAGING_DIR_HOST}||g' \
+        -e 's|${STAGING_DIR_NATIVE}||g' \
+        -e 's|-fdebug-prefix-map=[^ ]*||g' \
+        -i ${D}/${bindir}/prxs
 }
 
 INITSCRIPT_NAME = "proftpd"