fix two issues for older linux releases

Merge from trunk revision 2975

The following patch addresses two issues on older releases:

1) In trunk commit 2911, the line 'undefine VERBOSE' was added to
   parser/tst/Makefile so that the equality tests would not generate
   verbose output when $VERBOSE != 1. Unfortunately, the 'undefine'
   keyword was not introduced in GNU Make until version 3.82. On
   distro releases like Ubuntu 12.04 LTS that include versions of Make
   older than that, make check and make clean abort when VERBOSE is
   not set to 1. The patch fixes that by setting VERBOSE to a zero
   length string if does not already equal 1.

2) In trunk commit 2923, a workaround for systemd as init was added
   to the pivot_root regression test. The workaround included a
   call to ps(1) to determine if systemd is pid 1. Unfortunately,
   in older versions of the procps package (such as the version in
   Ubuntu 12.04 LTS), 'ps -hp1' emits the warning

     Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html

   The patch below converts the ps call to 'ps hp1' which does not
   generate the warning.

Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: John Johansen <john.johansen@canonical.com>

parser/tst/Makefile

@@ -10,7 +10,7 @@ ifeq ($(VERBOSE),1)
   PROVE_ARG+=-v
   PYTEST_ARG = -v
 else
-  undefine VERBOSE
+  VERBOSE=
 endif
 
 all: tests

tests/regression/apparmor/pivot_root.sh

@@ -53,7 +53,7 @@ if [ -x "${FINDMNT}" ] && ${FINDMNT} -no PROPAGATION / > /dev/null 2>&1 ; then
 	if [ "$(${FINDMNT} -no PROPAGATION /)" == "shared" ] ; then
 		root_was_shared="yes"
 	fi
-elif [ "$(ps -hp1  -ocomm)" = "systemd" ] ; then
+elif [ "$(ps hp1  -ocomm)" = "systemd" ] ; then
 	# no findmnt or findmnt doesn't know the PROPAGATION column,
 	# but init is systemd so assume rootfs is shared
 	root_was_shared="yes"