tools_common.sh: Add vlog()

Add a verbose logging function instead of checking
$VPX_TEST_VERBOSE_OUTPUT in multiple places.

Change-Id: I82618809f0964f696ed17ca4d99d8d7d252232f4

test/tools_common.sh

diff --git a/test/tools_common.sh b/test/tools_common.sh
index 0f5cbb9..1ed0176 100755
--- a/test/tools_common.sh
+++ b/test/tools_common.sh
@@ -16,6 +16,10 @@
 
 set -e
 
+vlog() {
+  [ "${VPX_TEST_VERBOSE_OUTPUT}" = "yes" ] && echo "$@"
+}
+
 # Sets $VPX_TOOL_TEST to the name specified by positional parameter one.
 test_begin() {
   VPX_TOOL_TEST="${1}"
@@ -313,9 +317,9 @@
   # Run tests.
   for test in ${tests_to_run}; do
     test_begin "${test}"
-    [ "${VPX_TEST_VERBOSE_OUTPUT}" = "yes" ] && echo "  RUN  ${test}"
+    vlog "  RUN  ${test}"
     "${test}"
-    [ "${VPX_TEST_VERBOSE_OUTPUT}" = "yes" ] && echo "  PASS ${test}"
+    vlog "  PASS ${test}"
     test_end "${test}"
   done
 
@@ -434,17 +438,13 @@
 # Setup a trap function to clean up after tests complete.
 trap cleanup EXIT
 
-if [ "${VPX_TEST_VERBOSE_OUTPUT}" = "yes" ]; then
-cat << EOF
-$(basename "${0%.*}") test configuration:
+vlog "$(basename "${0%.*}") test configuration:
   LIBVPX_BIN_PATH=${LIBVPX_BIN_PATH}
   LIBVPX_CONFIG_PATH=${LIBVPX_CONFIG_PATH}
   LIBVPX_TEST_DATA_PATH=${LIBVPX_TEST_DATA_PATH}
   VPX_TEST_OUTPUT_DIR=${VPX_TEST_OUTPUT_DIR}
   VPX_TEST_VERBOSE_OUTPUT=${VPX_TEST_VERBOSE_OUTPUT}
   VPX_TEST_FILTER=${VPX_TEST_FILTER}
-  VPX_TEST_RUN_DISABLED_TESTS=${VPX_TEST_RUN_DISABLED_TESTS}
-EOF
-fi
+  VPX_TEST_RUN_DISABLED_TESTS=${VPX_TEST_RUN_DISABLED_TESTS}"
 
 fi  # End $VPX_TEST_TOOLS_COMMON_SH pseudo include guard.