parser: make equality.sh honor env variable VERBOSE

- make the verbose output of equality.sh honor whether or not
  the environment variable VERBOSE is set

- thereby making the output verbose when 'make check V=1' or 'make
  check VERBOSE=1' is given from within the parser/ directory. This
  will make distribution packagers happy when diagnosing build
  failures caused by test failures.

- if verbose output is not emitted and the tests were successful, emit
  a newline before printing PASS.

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

parser/tst/Makefile

@@ -9,6 +9,8 @@ PROVE_ARG=-f
 ifeq ($(VERBOSE),1)
   PROVE_ARG+=-v
   PYTEST_ARG = -v
+else
+  undefine VERBOSE
 endif
 
 all: tests

parser/tst/equality.sh

@@ -27,7 +27,7 @@ _SCRIPTDIR=$(dirname "${BASH_SOURCE[0]}" )
 APPARMOR_PARSER="${APPARMOR_PARSER:-${_SCRIPTDIR}/../apparmor_parser}"
 fails=0
 errors=0
-verbose=
+verbose="${VERBOSE:-}"
 
 hash_binary_policy()
 {
@@ -430,5 +430,6 @@ then
 	exit $(($fails + $errors))
 fi
 
+[ -z "${verbose}" ] && printf "\n"
 printf "PASS\n"
 exit 0